Legal Opinion
Eastman Oil Well Survey Co. v. Sperry-Sun Well Surveying Co.
Court of Appeals for the Fifth Circuit
Decided December 8, 1942No. 10197PublishedCited by 11 opinions
1Opinion of the Court
HUTCHESON, Circuit Judge.
The suit was for infringement of a method claim of one1 and four method and two apparatus claims of anothers2 patent for orienting and setting whipstocks designed to guide a drilling tool in a definite predetermined direction, e. g., in straightening a crooked bore-hole or deliberately deflecting it in a given direction.
“A whipstock”, as appellant’s brief described it, “is, broadly speaking, a rotatable wedge with a grooved inclined face, and its purpose is to deflect or change the direction of drilling by guiding the drill bit down its face. It is used to change the…
2Cases cited7 opinions
- Shepard v. CarriganSupreme Court of the United States · 1886
- Temco Electric Motor Co. v. Apco Manufacturing Co.Supreme Court of the United States · 1928
- Butex Gas Co. v. Southern Steel Co.Court of Appeals for the Fifth Circuit · 1941
- Hughes v. Magnolia Petroleum Co.Court of Appeals for the Fifth Circuit · 1937
- Price-Trawick, Inc. v. Gas Lift Corp.Court of Appeals for the Fifth Circuit · 1939
2 more not listed; retrieve them via the Exa API.
3Cited by11 opinions
- Southern States Equipment Corp. v. Usco Power Equipment Corp. Usco Power Equipment Corp. v. Southern States Equipment CorpCourt of Appeals for the Fifth Circuit · 1953
- Thurber Corporation v. Fairchild Motor Corporation and Ford Motor CompanyCourt of Appeals for the Fifth Circuit · 1959
- Matthews v. Koolvent Metal Awning Co.Court of Appeals for the Fifth Circuit · 1946
- Kenneth Reiner and Frank A. Klaus, Jr., D/B/A Kaynar Company and Kaynar Mfg. Co., Inc. v. The I. Leon Co., Inc.Court of Appeals for the Second Circuit · 1963
- Harman v. ScottDistrict Court, S.D. Ohio · 1950
6 more not listed; retrieve them via the Exa API.