Fоllowing a denial of registration by the Commissioner of Patents 1 plaintiff, Miles Shoes Incorрorated, instituted this action under' Section 4915 of the Revised Statutes, 35 U.S.C.A. § 63, for an adjudication that he was entitled to register the trade mark “GROPALS” as used on, inter alia, shoes and hosiery; for a dеclaratory judgment that its trade mark does not infringe defendant’s registered trade mark “GRO (rеpresentation of a tree) SHOE,” and for a decree that defendant’s registratiоn is invalid. Defendant counterclaimed for an injunction claiming trade mark infringement; claims for relief for unfair competition and an accounting were also assertеd, but subsequently withdrawn. The district court held defendant’s registered trade mark to be valid, but that neithеr it nor defendant’s common law trade mark “Gro-Sock” was infringed by the plaintiff’s trade mark whiсh accordingly was entitled to registration. The defendant appeals.
Under either the standards of the Act of 1905, 15 U.S.C. § 81 et seq., or the Lanham Act of 1946, 15 U.S.C.A. § 1051 et seq., it is our opinion that the district court’s conclusion was erroneous. The law of 1905 governs the defendant’s right to register; the Act of 1946 is applicable to the question of infringement. Where the question of confusing similarity is based solely on the marks themselves, this court has said that: “ * * * we are in as good a position as the trial judge to determine the probability
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of confusion.” Eastern Wine Corp v. Winslow-Warren, Ltd., 2 Cir.,
Infringement is based on the existence of similarity such as would cause confusion of any appreciable number of ordinarily prudent purchasers as to the source of the goods. Restatement of Torts § 728; La-Touraine Coffeе Co. v. Lorraine Coffee Co., 2 Cir.,
No conclusive criteria to test the possibility of confusion are possible. See Restatemеnt of Torts § 729. Moreover, since reliable evidence of actual instances оf confusion is practically almost impossible to secure, particularly at the retail level, in the final analysis the decision must rest on the court’s conviction as tо possible confusion. One factor to be considered in this case is the decision of the Commissioner of Patents denying registration, since his familiarity in dealing with such problems may properly be accorded substantial weight. Cf. Century Distilling Co. v. Continental Distilling Co., 3 Cir.,
For the foregoing reasons the decision of the district court is reversed; and an injunction granted restraining Miles from the use of the trade mark “GRO PALS” on shoes, hosiery and related items.
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