(after stating the facts as above). [1] It is assigned for error that the court entered “pro forma” decrees. That Cramp, etc., Co. v. International, etc., Co., 228 U. S. 645, 33 Sup. Ct. 722, 57 L. Ed. 1003, ever requires reversal merely for this reason is not admitted, but need not be decided. The phrase complained of, in an appealable decree or judgment, usually means, and is asserted to mean in the present instance, that decision was rendered, not upon intellectual conviction that the decree was right, but merely to facilitate further proceedings.
But this court is not concluded by a phrase. We may examine the record to discover whether there was a genuine decision, and, having done so, are satisfied that the trial court by these decrees expressed the result of a consideration of the evidence. The decrees are not in fact pro forma, and do not become so by having a label put on them. We therefore consider the merits.
Further, this record requires mention of the decisions pointing out that commercial success as evidence is to be considered when patentability is doubtful (Locklin v. Buck, 159 Fed. 436, 86 C. C. A. 414); that nothing is more easily suggested by a popular new thing than an endeavor to put “mere novelty in the place of invention” (Robins, etc., Co. v. Link Belt Co., 233 Fed. 1005, 148 C. C. A. 15); and that successful exploitation of a device covered by a patent is often no more than the improvement by advertising and other energetic business methods of a commercial opportunity (National, etc., Co. v. Bissell, etc., Co., 249 Fed. 198, 161 C. C. A. 232).
These considerations have application here: The commercial op portunity is shown to have been afforded by the enormous growth of the electrical appliances for comfort above enumerated, and plaintiff is and has been a most pushful advertiser, setting forth in publications of record plausible reasons for patronage having no reference to whatever invention is defined by the claims in suit. We decline to consider commercial success in respect of either the fact of invention or interpretation of claims.
The accusations of infringement show that the fundamental question here is the scope or breadth of the senior patent. It is urged that plaintiff’s plug shows “a combination of elements” functioning “by reason of their co-operation,” which elements contained in an insulating body — that is, a single piece of porcelain — are (1) independent recesses functioning to contain and assist the contact springs; (2) locking contact springs, which are merely strips of metal bent into suitable shape and economically stamped out of sheet copper; (3) independent guide holes leading into the recesses and preventing abnormal distortion of contacts, because the walls of the holes sustain all the mechanical strain; and (4) recesses and guide hole walls closely surrounding and extending beyond the end of the contact springs, to the end that (5) the cap may and does carry plain and solid posts, which give good contact, and when of blade shape may also be economically stamped out of metal.
“separable attachment ping comprising an insulating body having recesses, locking contact springs in said recesses, and guide holes leading into said recesses and a cap having contact posts adapted to pass through the guide holes and engage the locking 'contact springs.”
This was rejected on Weston, supra, Cunningham, 320,117, and Marshall, 714,928; the gist of objection being that locking springs and recesses were both old, and there was no invention in having two recesses, instead of one, so as to put the springs into separate compartments. The applicant was compelled to redraft the claim, so that it reads as at present, and plainly requires the contact posts to pass through guide holes before engaging the contact locking springs in the recesses. It was this provision of an approach through insulated material that was required by the Office and yielded to by the applicant, and that acquiescence procured the allowance of the patent.
It has not infrequently occurred that, after many contests with examiners, the patentee emerges from the Office with a claim which in the opinion of the courts is as broad, or perhaps broader, than some which were rejected before allowance. If such final claim is deemed to rest fairly on the disclosure, it is no objection to it that the solicitor outflanked the examiner; but that is not the case here. If this patentee had gotten the claim he first propounded, he might have summarized invention in the manner hereinabove set forth; but as the matter stands he cannot claim that anything infringes the claim in suit of the senior patent that has not an independent guide hole leading to a recess.
There is not a single one of the abpve-enumerated alleged infringing articles of which this is true. It is desirable to have tire path of the contact posts predetermined, to get them in line for their contacts and secure alignment by insulated material, before the cap is shoved home.
It follows that there is no infringement of claim 1 of the senior patent, and it becomes unnecessary to determine whether that claim is invalid, if confined, as it must be, to the exact device described and depicted. There was small room for invention left when the application was filed, and the life of the patent is now nearly spent; “concealed contacts” has been a commercial catchword used by plaintiff to advance the sale of its patented article, and it is adopting the style of interpretation urged by the plaintiff here to say, what is admitted by the patentee himself, that defendants have no concealed contacts, but do have “wide-open contacts.”
In considering the question of contributory infringement, validity may be assumed for argument’s sake, as to all the claims in suit.
There was no novelty per se in the-use of knife blade contacts. They had been commercially used in the Ft. Wayne-Jenney construction, a'nd known at least since 1886. Nor was there inventive thought in securing a locking, as distinct from a frictional, engagement between contact post and current carrying spring. That was old, and is found in the senior patent, if nowhere else. The field of invention left open and occupied by Hubbell was to secure a notched or recessed blade by a supplementary spring, and this he did. That is the only idea validating the locking spring claims, and defendants do not employ that means. If the claims were read so as to cover, they would be void on the prior art.
The recess and screw claims, in so far as they advance those elements as presenting patentable novelty in attachment plugs, are void. As was candidly stated by plaintiff’s expert, if anything is composed of two parts intended to be fastened together, it was common practice to prevent relative rotation by “making one end square to fit into a square hole, or some such expedient.” That is what plaintiff does with its “base” and “end block.”
As for the “screw passing centrally” through the parts just mentioned, the method is shown to be nearly as old as electric plugs, and could doubtless be traced through many arts dealing with small articles assembled as needed from standardized parts manufactured in quantity. It is plainly within the competence of any good mechanic.
If, however, these claims be viewed as presenting the same combination as the senior patent and the locking spring claims, with recess and screw additions, they may stand; but the additions are worthless. No one infringes merely by using recesses and central screws.
Let each decree appealed from be reversed, with the costs of this court, and the causes remanded, with directions to dismiss the bills because of noninfringement, with the costs of the District Court.