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731 F.2d 818·
Fed. Cir.·
1984-03-26
·cited 44×
The court held that broadened reissue patent claims are not identical to original claims for purposes of intervening rights, and reversed liability for infringement prior to reissue. It affirmed literal infringement for some spacer blocks but vacated damages for others, remanding
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318 F.2d 743·
C.C.P.A.·
1963-06-10
·cited 22×
The court held that the appellants failed to prove that the prior art disclosure of perfluoroallene in the Miller patent was inoperable, and therefore the patent disclosure was sufficient to reject the appealed claims.
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489 F.2d 231·
4th Cir.·
1973-12-06
·cited 12×
The dissenting judge would affirm the district court's finding that the Sprengel patent is valid and not obvious, disagreeing with the majority's de novo review.
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299 F.2d 793·
4th Cir.·
1962-02-08
·cited 12×
The court held that the patent is invalid due to a lack of inventiveness and impermissibly broad claims, despite finding insufficient evidence of fraudulent procurement.
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555 F.2d 727·
9th Cir.·
1977-06-14
·cited 10×
The court held that the patent was invalid for obviousness because its key elements were present in the prior art and the adaptations were not beyond the skill of an ordinary mechanic.
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402 F.2d 517·
4th Cir.·
1968-09-13
·cited 8×
The court held that the patent for a 'free floating' insert in a saber saw was patentable as a conclusion of law, and that the defendant did not infringe.
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261 F.2d 244·
C.C.P.A.·
1958-12-01
·cited 6×
The court held that the rejected claim was unpatentable over the prior art because the differences were obvious to a person skilled in the art.
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317 F.2d 700·
4th Cir.·
1963-05-06
·cited 5×
The court held that while the patent is valid within a narrow scope, the defendant's folded sock packages do not infringe because they lack the essential "projecting heel portion" as defined during prosecution.
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394 F.2d 877·
4th Cir.·
1968-04-02
The court held that while the Karnofsky patent was valid, the French Oil Mill Machinery Company's Upton extractor did not infringe under the doctrine of equivalents because its method of operation was substantially different.
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383 F.2d 497·
6th Cir.·
1967-09-27
The patent for the Nelsson sound reduction channel is valid and not invalid due to obviousness over the prior art.