Digest of Patent And Trade-Mark Cases Decided By the Court of Appeals of the District of Columbia On Appeal From the Commissioner of Patents : And of Copyright Cases On Appeal From the Supreme Court of the District of Columbia : From the Date of the Organ
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Detail is of little consequence in designs, and it may be all important in mechanical inventions. In re Freeman, 23 App. D. C. 226; 109 O. G. 1339; 1904 C. D. 619. 163. Until the patent is actually issued it is always competent for the Patent Office, with due regard to the rules of law, to va- cate its favorable adjudication upon the question of patentability for good and sufficient cause. Oliver v. Felbel, 20 App. D. C. 255; 100 O. G. 2384; 1902 C. D. 565. 18. Particular Patents. 164. Bill in ...equity filed by Caleb W. Durham, for a patent for improvements in a drainage apparatus, dismissed, on the ground 98 PATENTS. II. Patentability. 19. Generally. III. Perfecting right. 1. Applications. of lack of patentability in the subject-matter of the bill. Dur- ham v. Commissioner of Patents, 69 O. G. 507 ; 1894 C. D. 547. 165. Claims 6, 7, and 8 of patent No. 700,919, granted to Austin B. Hayden May 27, 1902, for an improvement in computing- scales, Held void for lack of patentable invention in view of the prior art and proceeding in the Patent Office.
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