26
in one section regarding "means" claiming, § 112, ¶ 6. All but one of these arguments were made in Graver Tank in the context of the 1870 Patent Act, and failed to command a majority.3
The 1952 Patent Act is not materially different from the 1870 Act with regard to claiming, reissue, and the role of the PTO. Compare, e. g., 35 U. S. C. § 112 ("The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention") with the Consolidated Patent Act of 1870, ch. 230, § 26, 16 Stat. 198, 201 (the applicant "shall particularly point out and distinctly claim the part, improvement, or combination which he claims as his invention or discovery"). Such minor differences as exist between those provisions in the 1870 and the 1952 Acts have no bearing on the result reached in Graver Tank, and thus provide no basis for our overruling it. In the context of infringement, we have already held that pre-1952 precedent survived the passage of the 1952 Act. See Aro Mfg. Co. v. Convertible Top Replacement Co., 365 U. S. 336, 342 (1961) (new section defining infringement "left intact the entire
3 Graver Tank was decided over a vigorous dissent. In that dissent, Justice Black raised the first three of petitioner's four arguments against the doctrine of equivalents. See 339 U. S., at 613-614 (doctrine inconsistent with statutory requirement to "distinctly claim" the invention); id., at 614-615 (patent reissue process available to correct mistakes); id., at 615, n. 3 (duty lies with the Patent Office to examine claims and to conform them to the scope of the invention; inventors may appeal Patent Office determinations if they disagree with result).
Indeed, petitioner's first argument was not new even in 1950. Nearly 100 years before Graver Tank, this Court approved of the doctrine of equivalents in Winans v. Denmead, 15 How. 330 (1854). The dissent in Winans unsuccessfully argued that the majority result was inconsistent with the requirement in the 1836 Patent Act that the applicant "particularly 'specify and point' out what he claims as his invention," and that the patent protected nothing more. Id., at 347 (opinion of Campbell, J.).
Page: Index Previous 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 NextLast modified: October 4, 2007