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HONOLULU OIL CORP. V. HALLIBURTON, 306 U. S. 550 (1939)

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U.S. Supreme Court

Honolulu Oil Corp. v. Halliburton, 306 U.S. 550 (1939)

Honolulu Oil Corp. v. Halliburton

No. 466

Argued March 3, 6, 1939

Decided April 17, 1939*

306 U.S. 550

Syllabus

Claims 8 to 19 of Simmons' Patent No. 1,930,987 (claims 8 and 18 being method claims, and the others apparatus claims) for a method and apparatus for testing productivity of formations encountered in drilling oil and other deep wells by the rotary method held invalid for want of invention. Pp. 306 U. S. 559, 306 U. S. 562.

98 F.2d 436 reversed in part, affirmed in part.

Writs of certiorari issued on cross-petitions, 305 U.S. 591, to review a decree which, reversing in part a decree of the District Court, 18 F.Supp. 58, held certain apparatus claims of a patent invalid and certain method claims valid and infringed.





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