Legal Opinion
Application of Blondiau
Court of Customs and Patent Appeals
Decided April 3, 1950No. Patent Appeals 5664PublishedCited by 2 opinions
1Opinion of the Court
JOHNSON, Judge.
This is an appeal from a decision of the Board of Appeals of the United States Patent Office affirming a decision of the Primary Examiner finally rejecting as unpat-entable over the prior art all of the claims, 1 and 2, of an application for a patent on a method of manufacture of 'blast furnace slag cement.
The claims read as follows:
“1. A method of manufacture of ¡blast ■furnace slag cement, consisting in uniformly calcining during 5 to 10 minutes a product containing calcium sulphate at a temperature comprised ¡between 850° C and the temperature of rapid decomposition of the…
2Cases cited7 opinions
- Ex Parte Bollman and SwartwoutSupreme Court of the United States · 1807
- Smith v. NicholsSupreme Court of the United States · 1875
- Naylor v. Alsop Process Co.Court of Appeals for the Eighth Circuit · 1909
- In re HaneyCourt of Customs and Patent Appeals · 1946
- Rembert v. CoeCourt of Appeals for the D.C. Circuit · 1943
2 more not listed; retrieve them via the Exa API.
3Cited by2 opinions
- Application of BersworthCourt of Customs and Patent Appeals · 1951
- Bird Provision Company v. Owens Country Sausage, Inc.District Court, N.D. Texas · 1974