OPINION OF THE COURT
At No. 18,274, Neifeld appeals from an order of the District Court granting Steinberg’s motion to dissolve a Writ of Foreign Attachment and granting Stein-berg’s motion to dismiss the action. At No. 18,275, Steinberg appeals from an order denying him injunctive relief.
The facts can be stated as follows: On April 7, 1969, Neifeld filed a complaint in the Court of Common Pleas of Philadelphia County, alleging that Steinberg had breached a contract to sell and deliver to Neifeld 6,000 shares of common stock of Total Energy Leasing Corporation (TELCO), a company in which Steinberg was the principal stockholder and chairman of the Board of Directors. The suit was commenced by having the Sheriff serve a Writ of Foreign Attachment (12 P.S.Appendix R.C.P. 1252) upon a Philadelphia stockbroker, Suplee, who held some of Steinberg’s securities. The Sheriff, however, failed to make a manual seizure of the securities.
On May 29, 1969, Steinberg removed the case to the United States District Court for the Eastern District of Pennsylvania pursuant to 28 U.S.C. § 1441(a). On the same date, Steinberg filed an answer in which he asserted that the court lacked personal jurisdiction over him, that venue was improperly laid in that court and that there was insufficient process as to the attempted seizure of his securities. In the same pleading Steinberg also filed a counterclaim against Neifeld alleging that Neifeld had improperly used confidential information belonging to TELCO. Steinberg requested the court to enter either an or *425 der rescinding the contract which was the basis of Neifeld’s suit or to award damages to Steinberg.
On June 27, 1969, Neifeld filed a motion to strike Steinberg’s defenses respecting personal jurisdiction, venue and service of process on the ground that Steinberg, by filing the counterclaim, had submitted to the jurisdiction of the court. 1 2On July 3, 1969, Steinberg filed an amended answer pursuant to Rule 15 (a) of the Federal Rules of Civil Procedure, 28 U.S.C., by which he purported to withdraw his counterclaim against Neifeld. 2 , 3 On July 11, 1969, argument was had on Neifeld’s motion to strike Steinberg’s defenses and on August 28, 1969, the District Court (Judge Higginbotham) denied the motion reasoning that “since the counterclaim has been withdrawn, [Neifeld] is not entitled to any special advantage which might occur in a situation where a counterclaim is being maintained by a defendant.”
On the same day the District Court denied Neifeld’s motion to strike, Steinberg filed a motion to dissolve the Writ of Foreign Attachment for failure of Nei-feld to comply with 12A P.S. § 8-317 (Pa.U.C.C.) which requires manual seizure of the shares to effect a valid attachment. 4 On September 4,1969, Stein-berg filed a motion to dismiss the complaint for lack of in personam or in rem jurisdiction. At the argument on these two motions on September 12, 1969, Steinberg also requested the court to enjoin Neifeld from further attempts to attach Steinberg’s securities. On September 23, 1969, the District Court (Judge Luongo) granted Steinberg’s motion to dissolve the Writ of Foreign Attachment and his motion to dismiss the complaint. The court, however, denied Steinberg’s request for injunctive relief. 5
I. NEIFELD’S APPEAL [2] In considering the issue raised by Neifeld in his appeal we must first answer the threshold question as to what *426 body of law this court should look in order to ascertain the applicable rule. The issue raised by Neifeld is whether the joinder of a permissive counterclaim with the defenses of lack of jurisdiction over the person, lack of venue, insufficiency of process and insufficiency of serviсe of process (jurisdictional defenses), is a waiver of these defenses where the defendant later withdraws the counterclaim without leave of court.
In Hanna v. Plumer,
Moreover, even if the Federal Civil Rules did not implicitly cover the instant case, we would not be obliged to follow Pennsylvania procedure. Hаnna v. Plu-mer indicates that the outcome-determination test enunciated in Guaranty Trust Co. of New York v. York,
While it is true that the application of Pennsylvania procedural rules would alter the outcome of the litigation, the difference between the federal rule and the Pennsylvania Rule “would be of scant, if any, relevance” to Steinberg’s decision to litigate in the state court or to remove to the federal court.
Since we have determined that federal law governs the resolution of the issue raised by Neifeld’s appeal, we will now examine the difficult problems presented. Neifeld argues that the filing of the permissive 6 counterclaim by *427 Steinberg constituted a submission by him to the jurisdiction and venue of the District Court. Steinberg rebuts this argument by contending that a syllogistic reading of Rules 15(a) and (c) dictates that a counterсlaim was not before the court ab initio since Rule 15(c) states that an amended pleading relates back to the date of the original pleading. 7 We agree with the conclusion sought by Steinberg and hold that the assertion of a permissive counterclaim in the same pleading in which a defendant raises defenses of lack of jurisdiction over the person, lack of venue, insufficiency of process and inadequate service of process does not constitute a waiver of these defenses where the defendant later validly withdraws the counterclaim without leave of court.
Want of personal jurisdiction and lack of venue can be waived by consent or conduct of the defendant. Hoffman v. Blaski,
Rule 12(b) states in part: “Every defense, in law or fact, to a claim for relief in any pleading, whether a claim, counterclaim, cross-claim, or third-party claim, shall be asserted in the responsive pleading thereto if one is required, except that the following defenses may at the option of the pleader be made by motion: * * * (2) lack of jurisdiction over the person, (3) improper venue, (4) insufficiency of рrocess, (5) insufficiency of service of process * * *
No defense or objection is waived by being joined with one or more other defenses or objections in a responsive pleading or motion. *
* * ” (Emphasis added.) While Rule 12(b) allows a defendant to answer to the merits in the same pleading in which he raises a jurisdictional defense without waiving the jurisdictional defense, it does not specifically authorize a defendant to couple a counterclaim with a jurisdictional defense without waiving the jurisdictional defense. Although at least two courts interpreted the quoted rule to mean that a “counterclaim” refers back to “[e]very defense” and that a counterclaim is a “defense or objection” which may be asserted with other defenses or objections without waiving them (Keil Lock Co. v. Earle Hardware Mfg. Co.,
Although Rule 12(b) does not specifically shield these jurisdictional defenses, the Rule implicitly authorizes a defendant to join these defenses with a counterclaim without waiving these defenses. Rule 12(b) providеs a defendant with the option of raising jurisdictional defenses by motion or by answer. If we were to take the position that a defendant, by raising his jurisdictional defenses in the same pleading in which he asserted a counterclaim, waived his jurisdictional defenses, we would in effect be engraft-ing a judicial exception to Rule 12(b). We would be requiring a defendant to raise his jurisdictional defenses by motion when he intends to file a counterclaim in his responsive pleading. 10 This requirement would be contrary to the option provided to the defendant in Rule 12(b). 11
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Furthermore, the policy behind Rule 12(b) militates against our finding a waiver where a defendant files a counterclаim in the same pleading in which he asserts jurisdictional defenses. The purpose behind Rule 12(b) is to avoid the delay occasioned by successive motions and pleadings and to reverse the prior practice of asserting jurisdictional defenses by “special appearance.” 5 C. Wright and A. Miller, Federal Practice and Procedure: Civil § 1362, at 647-48 (1969). Judge Maris clearly articulated the changes which Rule 12(b) made in his seminal opinion in Orange Theatre Corp. v. Rayherstz Amusement Corp.,
If we were to find a waiver in a case, such as the instant one, we would, in effect, be requiring a defendant to make what amounts to a “special appearance” for wе would be requiring him to raise his jurisdictional defenses before answering to the merits. This result would be insupportable unless there were an important countervailing policy militating in favor of a waiver. Neifeld argues that a party who invokes the power of the court asking for affirmative relief should not be allowed the inconsistent objection that the forum is personally inconvenient for him. 12 In other words, he argues that when Steinberg filed his counterclaim in the same pleading in which his jurisdictional defenses appeared, he utilized the court facilities in a manner inconsistent with his objections to personal jurisdiction, venue, and service of process. 13
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Wе find this argument unconvincing in the light of the peculiar facts of the case at bar. As stated earlier, Steinberg filed an amended answer pursuant to Rule 15(a) in which he omitted the counterclaim. Although both Steinberg and the District Court relied upon Rule 15, when in fact the issue should have been governed by Rule 41(a)
14
and (c),
15
>
16
we will treat Steinberg’s amendment as
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the equivalent of a motion for a voluntary dismissal of his counterclaim. Reynolds Jamaica Mines v. La Societe Navale Caennaise,
The order of the District Court granting Steinberg’s motion to dissolve the Writ of Foreign Attachment and to dismiss Neifeld’s suit will be affirmed.
II. STEINBERG’S CROSS-APPEAL
Since we have determined that the District Court correctly decided the issues raised by Neifeld’s appeal, we must now consider whether it was also *432 correct in disposing of the issue raised by Steinberg’s cross-appeal. In Stein-berg’s motion to dissolve the Writ of Foreign Attachment for failure of the Sheriff to manually seize the shares in the hands of the Philadelphia brоkerage firm, Steinberg also requested that the court “direct the Garnishee to deliver promptly to Defendant his securities now in Ganishee’s possession, and in the interim to restrain Plaintiff from instituting any legal action designed to attach said securities in Garnishee’s possession.” On September 23, 1969, the District Court denied Steinberg’s request. On September 24, 1969, Neifeld filed a new Writ of Foreign Attachment and a new complaint in the Philadelphia Court of Common Pleas. 18
Steinberg contends in his cross-appeal that since the Sheriff in making the original attachment failed to seize the securities in accordance with 12A P.S. § 8-317 of the Pennsylvania Uniform Commercial Code, 19 Neifeld should be forever barred from further attempts to attach the identical res for the identical cause of action.
Neifeld has suggested that the issue raised by the cross-appeal has become moot since he has already instituted a new legal action and the securities have already been seized by the Sheriff. We find it unnecessary to decide this question for the cross-appeal is, in any event, lacking in merit.
Steinberg’s argument is that the District Court should have effectuated its judgment under 28 U.S.C. § 2283 20 by ordering the stockbroker to deliver Stein-berg’s securities to him and by enjoining Neifeld from further attempts to bring another Writ of Foreign Attachment by levying upon the same securities. The judgment entered by the District Court was that the Writ of Foreign Attachment was invalid by reason of the Sheriff’s failure to seize the securities and that Neifeld lacked personal or in rem jurisdiction over Steinberg. This was not an adjudication upon the merits (Rule 41(b)) and Neifeld was at liberty to sue again on the identical cause of action without fear that Steinberg could successfully raise the defense of res ju-dicata. See LeJeune v. Leiblich, 19 Schulykill L.R. 74 (1922). Since Neifeld would not be barred by res judicata in maintaining the second suit filed by him against Steinberg, it would be anomalous if Steinberg could nonetheless enjoin Neifeld from bringing the second suit
Furthermore, Steinberg’s reliance upоn 28 U.S.C. § 2283 is misplaced for it only applies to a stay of a suit already instituted in a state court. It does not apply to injunctions against the institution of state court proceedings which is the type of relief Steinberg requested from the District Court. Dombroski v. Pfister,
Finally, Steinberg ascribes a purpose to 12A P.S..§ 8-317 which is manifestly unfair. He asserts that the mere procedural error of a sheriff in failing to seize securities prevents a plaintiff from correcting the error and suing again. Noncompliance with 12A P.S. § 8-317 should not cause such a harsh result. The reason why 12A P.S. § 8-317 requires a party to manually seize securities in order to effect a valid attachment is to foreclose all possibility of the security finding its way into a transferee’s hands after an attempted attachment has been made. This policy has already been vindicated for we take judicial notice that the Sheriff manually seized the securities on September 24, 1969.
The order of the District Court denying Steinberg’s request for injunctive relief will also be affirmed.
Notes
. The record shows that on June 2, 1969, Steinberg filed a notice to take the oral deposition of Neifeld and Robert B. Cos-den, Vice-President of Suplee, Mosley, Close and Kerner, Inc., the stock brokerage firm upon whom the Sheriff issued the Writ of Foreign Attachment. On June 20, 1969, Steinberg filed another notice to take the oral dеposition of one Robert Seltzer. The depositions of Neifeld and Cosden were scheduled for July 7, 1969, while the deposition of Seltzer was scheduled for July 1, 1969. The record fails to show whether these depositions were taken. But even if these depositions were taken, this would not constitute a “general appearance” or a waiver of the venue defense. See Blank v. Bitker,
. The withdrawal was explicit. The heading of the document recites “Amended Answer Pursuant to Rule 15(a) Omitting Seventh Defense and Counterclaim.”
. Rule 15(a) states in relevant part: “A party may amend his pleading once as a matter of course at any time before a responsive pleading is served * * As of July 3, 1969, no responsive pleading to the counterclaim had been served by Neifeld. Since Neifeld’s motion to strike Steinberg’s defenses does not constitute a responsive pleading, Kelly v. Delaware River Joint Commission,
. 12A P.S. § 8-317 of the Pennsylvania Uniform Commercial Code states: “No attachment or levy upon a security or any share or other interest evidenced thereby which is outstanding shall be valid until the security is actually seized by the officer making the attachment or levy ^
In his brief Neifeld concedes that the. District Cоurt was correct in quashing the Writ of Foreign Attachment. We need not consider this issue.
. On September 24, 1969, one day after the order of the District Court dismissing the complaint, Neifeld filed a new Writ of Foreign Attachment and a new complaint in the Court of Common Pleas of Philadelphia County. This time the Sheriff manually seized the securities. This action also was removed to the District Court by Steinberg on October 15, 1969. On November 14, 1969, all proceedings therein were stayed pending the outcome of this appeal.
. We hesitate to classify Steinberg’s counterclaim as permissive for it implies that he had standing to assert it. It is probably more accurate to classify it as a non-compulsory counterclaim. Rule 13(a) (2) states that a defendant need not assert a counterclaim in an action commenced by attachment. Additionally, Steinberg’s counterclaim was not compulsory since he lacked standing to *427 assert it. Tlie important point, however, is that Steinberg was not required to assert it in his answer or risk waiver. See Rule 13(a), Fed.R.Civ.Proc., 28 U. S.C.
. Rule 15(c) : “Relation Back of Amendments. Whenever the claim’ or defense asserted in the amended pleading arose out of the conduct, transaction, or occurrence set forth or attempted to be set forth in the original pleading, the amendment relates back to the date of the original pleading.”
In respect to relation back, see Reynolds Jamaica Mines v. La Societe Navale Caennaise,
. This was an action for damages for patent infringement in which the defendant coupled his counterclaim with a defense of lack of personal jurisdiction and an answer to the merits. Defendant’s motion to quash service of process and to dismiss for lack of jurisdiction was granted despite plaintiff’s argument that the defendant had submitted to the jurisdiction of the court: “Rule 12(b) * * * expressly provides that every defense available to a party, including a counterclaim, shall be asserted in a responsive pleading and that no defense or objection is waived by being joined with another. Thus the distinction between special and general appearances is abolished. [Citations omitted]. The defense of want of jurisdiction of the person is not waived by being joined in the answer with a defense to the merits or with a counterclaim.’-
. Rule 8(c) states in relevant part: “When a party has mistakenly designated a defense as a counterclaim or a counterclaim as a defense, the court on terms, if justice so requires, shall treat the pleading as if thеre had been a proper designation.”
. If Steinberg had raised his jurisdictional defenses by motion prior to filing his answer, there would clearly have been no waiver. Knapp-Monarch Co. v. Dominion Elec. Corp.,
. It should also be noted that when the rule makers wanted to attach “waiver” consequences in certain situations, they did so explicitly. Rule 12(h) (1) states that the defenses of lack of personal jurisdiction, improper venue, insufficiency of process and insufficiency of service of process are waived if they are not included in a preliminary motion under Rule 12 as required by Rule 12(g) or, if no such motion is made, if they are not included in the resрonsive pleading or an amendment as of right to that pleading pursuant to Rule 15(a). In the case at bar, Steinberg asserted his jurisdictional defenses in his responsive pleading. If we found that the mere filing of a counterclaim in the same responsive pleading that raised jurisdictional defenses constituted a waiver of these jurisdictional defenses, we would be add *429 ing by judicial rule another situation when jurisdictional defenses are waived.
. Rule 8(e) (2) which allows a defendant to assert inconsistent defenses in the same pleading has no direct bearing upon the issue involved in this case for, as mentioned previously, a counterclaim is not a defense. It is, however, another manifestation of the liberal pleading philosophy of the Federal Rules of Civil Procedure. See Charles Rubenstein, Inc. v. Columbia Pictures Corp.,
. Neifeld’s argument has in fact been accepted by the majority of courts that have considered this problem. In Hook & Ackerman, Inc. v. Hirsh,
There is a paucity of reasoning in each of the aforementioned cases with no discussion of the policy behind Rule 12(b), i. e., the abolition of special appearances. Also, each one of these cases is distinguishable from the instant case in that none of the counterclaimants in these cases attempted to voluntarily dismiss or withdraw their counterclaims at any time during the litigation.
The only cases which have found no waiver of jurisdictional defenses are those cases where the defendant asserted a compulsory counterclaim. Dragor Shipping Corp. v. Union Tank Car Co.,
AVliile we agree that a defendant’s case is even stronger for finding no waiver when a jurisdictional defense is combined with a compulsory counterclaim, we do not think that we should find a waiver simply because the counterclaim in the instant ease is not compulsоry. Rule 13(b) does not place any restrictions on a defendant’s right to assert a permissive counterclaim. Nor does Rule 13(b) mention any untoward procedural results (such as waiver) which will be occasioned by the assertion of a permissive counterclaim.
. Rule 41(a) : “Voluntary Dismissal: Effect Thereof. (1) By Plaintiff; hy Stipulation. Subject to the provisions of Rule 23 (e), of Rule 66, and of any statute of the United States, an action may be dismissed by the plaintiff without order of court (i) by filing a notice of dismissal at any time before service by the adverse party of an answer or of a motion for summary judgment, whichever first occurs * *
. Rule 41(c) : “Dismissal of Counterclaim, Cross-Claim, or Third-Party Claim. The provisions of this rule [41] apply to the dismissal of any сounterclaim, cross-claim, or third-party claim. A voluntary dismissal by the claimant alone pursuant to paragraph (1) of subdivision (a) of this rule shall be made before a responsive pleading is served or, if there is none, before the introduction of evidence at the trial or hearing.”
. Rule 15(c) applies in a situation where a claim or defense omitted in the original answer is asserted in the amended answer. In the instant case, no claim or defense was asserted by Steinberg in his amended answer. On the contrary, as we *431 have said, a claim appearing in Stein-berg’s original answer was omitted in the amended answer.
. We need not decide whether thе result would have been different if Neifeld had served a responsive pleading to Stein-berg’s counterclaim and Steinberg had been required to get leave of court in order to dismiss his counterclaim, although we do recognize that Neifeld’s argument with respect to invoking the court’s jurisdiction would be entitled to more serious consideration in that situation. See,
e. g.,
Kincade v. Jeffery-DeWitt Insulator Corp.,
Finally, we are not impressed with the dictum appearing in a Fourth Circuit case which seems to be contrary to the conclusion reached by us. In Reynolds Jamaica Mines v. La Societe Navale Caennaise,
. See note 5 supra.
. See note 4 supra.
. “A court of the United States may not grant an injunction to stay proceedings in a State court except as expressly authorized by Act of Congress, or where necessary in aid of its jurisdiction, or to protect or effectuate its judgments.”
