Legal Opinion
Smith Industries International v. Hughes Tool Company
Court of Appeals for the Fifth Circuit
Decided June 10, 1968No. 24787PublishedCited by 11 opinions
1Opinion of the Court
RIVES, Circuit Judge:
This infringement suit by appellee Hughes against appellant Smith presents the usual questions: Is Hughes’ patent No. 3,075,781 1 valid and, if so, did Smith infringe that patent ? The patent relates to a bearing seal or face seal adapted to seal between two relatively rotatable surfaces to retain lubricant within a bearing and to exclude foreign material. Its particular utility is in the environment of a bit used in drilling oil wells.
The seal is circular or ring shaped and comprises a metal spring or core covered by an impervious material such as rubber. The metal…
2Cases cited15 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Marconi Wireless Co. v. United StatesSupreme Court of the United States · 1943
- Leeds & Catlin Co. v. Victor Talking MacHine Co.Supreme Court of the United States · 1909
- Kenneth Reiner and Frank A. Klaus, Jr., D/B/A Kaynar Company and Kaynar Mfg. Co., Inc. v. I. Leon Co., Inc.Court of Appeals for the Second Circuit · 1960
- Monroe Auto Equipment Company v. Heckethorn Manufacturing & Supply CompanyCourt of Appeals for the Sixth Circuit · 1964
10 more not listed; retrieve them via the Exa API.
3Cited by11 opinions
- Interconnect Planning Corporation v. Thomas E. Feil, Robert O. Carpenter, v Band Systems, Inc., and Turret Equipment Corp.Court of Appeals for the Federal Circuit · 1985
- Bourns, Inc. v. United StatesUnited States Court of Claims · 1976
- Rohm and Haas Co. v. Dawson Chemical Co., Inc.District Court, S.D. Texas · 1983
- Hughes Tool Company, Plaintiff-Appellant-Cross v. G. W. Murphy Industries, Inc., Defendant-Appellee-CrossCourt of Appeals for the Fifth Circuit · 1974
- Steelcase, Inc. v. Delwood Furniture Co.Court of Appeals for the Fifth Circuit · 1978
6 more not listed; retrieve them via the Exa API.