Legal Opinion
Grant v. Koppl
Court of Appeals for the Ninth Circuit
Decided September 16, 1938No. 8622PublishedCited by 20 opinions
1Opinion of the Court
WILBUR, Circuit Judge.
This is an appeal from a final decree of the District Court holding that appellees have not infringed patent No. 1,844,354 for an expanding well reamer granted to appellant February 9, 1932.
The patented device is primarily for use in rotary oil well drilling. In drilling an oil well the casing is lowered into the well as. the drilling progresses to prevent the walls of the well from caving into the bored hole. Further drilling operations below the casing are then necessarily carried on at reduced diameter. To increase the bore below the casing so that the casing may be…
2Cases cited5 opinions
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Linde Air Products Co. v. Morse Dry Dock & Repair Co.Court of Appeals for the Second Circuit · 1917
- Goodyear Shoe Mach. Co. v. SpauldingU.S. Circuit Court for the District of Massachusetts · 1900
- Bird v. Elaborated Roofing Co. of BuffaloCourt of Appeals for the Second Circuit · 1919
- Henderson v. Welch Dry Kiln Co.District Court, E.D. Louisiana · 1928
3Cited by20 opinions
- Harry A. Pursche v. Atlas Scraper and Engineering Co., a Corporation, Atlas Scraper and Engineering Co., a Corporation v. Harry A. PurscheCourt of Appeals for the Ninth Circuit · 1962
- Bryan W. Nickerson, Jr. v. The Bearfoot Sole Company, Inc., the Bearfoot Airway Corporation,defendants-AppellantsCourt of Appeals for the Sixth Circuit · 1963
- Lockwood v. Langendorf United Bakeries, Inc.Court of Appeals for the Ninth Circuit · 1963
- McRoskey v. Braun Mattress Co.Court of Appeals for the Ninth Circuit · 1939
- Steigleder v. Eberhard Faber Pencil Co.District Court, D. Massachusetts · 1948
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