Legal Opinion
Foster Cathead Company v. Malvern M. Hasha and International Tool Company, Inc.
Court of Appeals for the Fifth Circuit
Decided October 11, 1967No. 23541PublishedCited by 25 opinions
1Opinion of the Court
DYER, Circuit Judge:
This is a suit for infringement of United States Patent No. 3,144,085, issued August 11, 1964, to Malvern M. Hasha, covering a “Power Spinner Unit for Well Swivels” (commonly known as a kelly spinner) a device used in connection with oil well drilling. Judgment on a jury verdict was entered for appellees 1 holding claims 1, 2, 3, 4, 12, 13, 15, 16 and 17 of the patent valid 2 and, except for claim 16, infringed.
The evidence involves the problem of adding additional sections of pipe to the drill string in oil well drilling operations. To accomplish this before Hasha…
2Cases cited22 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- General Electric Co. v. Wabash Appliance Corp.Supreme Court of the United States · 1938
- Mumm v. Jacob E. Decker & SonsSupreme Court of the United States · 1937
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- Holland Furniture Co. v. Perkins Glue Co.Supreme Court of the United States · 1928
17 more not listed; retrieve them via the Exa API.
3Cited by25 opinions
- Karl Ziegler, Plaintiff-Appellant-Cross-Appellee v. Phillips Petroleum Company, Defendant-Appellee-Cross-AppellantCourt of Appeals for the Fifth Circuit · 1973
- Stamicarbon, N v. V. Escambia Chemical CorporationCourt of Appeals for the Fifth Circuit · 1970
- Duplan Corp. v. Deering Milliken, Inc.District Court, D. South Carolina · 1977
- Sterner Lighting, Inc. v. Allied Electrical Supply, Inc.Court of Appeals for the Fifth Circuit · 1970
- Continental Oil Company, Cross-Appellee v. Jimmy R. Cole, D/B/A Jim R. Cole & Associates and Cole Development Co. Inc., Cross-AppellantsCourt of Appeals for the Fifth Circuit · 1981
20 more not listed; retrieve them via the Exa API.