Legal Opinion
Blanc v. Spartan Tool Co.
Court of Appeals for the Seventh Circuit
Decided May 27, 1948No. 9486PublishedCited by 12 opinions
1Opinion of the Court
KERNER, Circuit Judge.
Plaintiff appeals from a judgment dismissing his complaint which charged defendant with infringement of claims 4 and 5 and 7 to 11 inclusive of reissue Patent No. 22113 for a “Drain Cleaner,” and claims 3 and 6 of Patent No. 2069871 for a “Cutter Member for Cleaning Drain Pipes.” These patents were issued to Blanc on July 16, 1942 and February 9, 1937, respectively, and are referred to herein as 113 and 871 respectively. Defendant denied infringement and asserted that the patents were invalid because of prior use and lack of invention. The case was tried without a jury.…
2Cases cited10 opinions
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- Sinclair & Carroll Co. v. Interchemical Corp.Supreme Court of the United States · 1945
- Adams v. Bellaire Stamping Co.Supreme Court of the United States · 1891
- Blanc v. CurtisCourt of Appeals for the Sixth Circuit · 1941
- Lincoln Electric Co. v. Linde Air Products Co.District Court, N.D. Ohio · 1947
5 more not listed; retrieve them via the Exa API.
3Cited by12 opinions
- Dubil v. Rayford Camp & Co.Court of Appeals for the Ninth Circuit · 1950
- Seismograph Service Corp. v. Offshore Raydist, Inc.Court of Appeals for the Fifth Circuit · 1958
- Skoog v. McCray Refrigerator Co.Court of Appeals for the Seventh Circuit · 1954
- Blanc v. Spartan Tool Co.Court of Appeals for the Seventh Circuit · 1949
- Shelco, Inc. v. Dow Chemical CompanyDistrict Court, N.D. Illinois · 1970
7 more not listed; retrieve them via the Exa API.