Legal Opinion
Grayson Heat Control, Ltd. v. Los Angeles Gas Appliance Co.
District Court, S.D. California
Decided September 10, 1941No. 472PublishedCited by 2 opinions
1Opinion of the Court
JENNEY, District Judge.
This case is now before the court upon objections by both plaintiff and defendant to the Special Master’s Report. The action is by Grayson Heat Control, Ltd., owner of Letters Patent No. 1,699,468 and No. 1,957,774, issued to John H. Grayson on January 15, 1929, and May 8, 1934, respectively. Plaintiff charges infringement of both letters patent and unfair competition. Jurisdiction is invoked solely under the patent laws of the United States. Defendant denies both infringement and unfair competition and alleges that the patents in suit are invalid in law and anticipated…
2Cases cited14 opinions
- Seymour v. OsborneSupreme Court of the United States · 1871
- Armstrong Paint & Varnish Works v. Nu-Enamel Corp.Supreme Court of the United States · 1938
- Brown v. PiperSupreme Court of the United States · 1875
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1938
- Steward v. American Lava Co.Supreme Court of the United States · 1909
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3Cited by2 opinions
- Kemart Corp. v. Printing Arts Research Laboratories, Inc.Court of Appeals for the Ninth Circuit · 1953
- Grayson Heat Control v. Los Angeles Gas Appliance Co.Court of Appeals for the Ninth Circuit · 1943