Legal Opinion
In re de Castelet
Court of Customs and Patent Appeals
Decided October 6, 1977No. Patent Appeal No. 76-699PublishedCited by 13 opinions
1Opinion of the Court
MARKEY, Chief Judge.
Appeal from the decision of the Patent and Trademark Office Board of Appeals (board), affirming the rejection of claims 5-7, all the claims in application serial No. 68,507, filed August 31, 1970, entitled “Method of Generating a Curve, Applicable *1238to Tracing Machines or Machine Tools.” We affirm.
The Invention
De Castelet’s invention relates to a method of generating a curve or family of curves, employing a computer in conjunction with drafting and milling machines. The invention employs these principles: (1) a curve may be represented by four points defining two straight…
2Cases cited18 opinions
- Gottschalk v. BensonSupreme Court of the United States · 1972
- O'Reilly v. MorseSupreme Court of the United States · 1854
- Dolbear v. American Bell Telephone CompanySupreme Court of the United States · 1888
- Funk Bros. Seed Co. v. Kalo Inoculant Co.Supreme Court of the United States · 1948
- Le Roy v. TathamSupreme Court of the United States · 1853
13 more not listed; retrieve them via the Exa API.
3Cited by13 opinions
- In re FreemanCourt of Customs and Patent Appeals · 1978
- In re MeyerCourt of Customs and Patent Appeals · 1982
- In re JohnsonCourt of Customs and Patent Appeals · 1978
- In re MaucorpsCourt of Customs and Patent Appeals · 1979
- In re GelnovatchCourt of Customs and Patent Appeals · 1979
8 more not listed; retrieve them via the Exa API.