Legal Opinion
Robertshaw-Fulton Controls Co. v. Patrol Valve Co.
District Court, N.D. Ohio
Decided May 27, 1952No. Civ. No. 25676PublishedCited by 3 opinions
1Opinion of the Court
JONES, Chief Judge.
This is an action for a declaratory judgment of invalidity and non-infringement of U. S. Letters Patent 2,185,421. Defendant, the owner of the patent by assignment from the joint-inventors, denies that it is invalid, and by way of counterclaim, charges the plaintiff with infringement and with violations of a license agreement, for which it seeks recovery of damages and royalties.
The case was referred to William L. West as Special Master to hear and consider all evidence and arguments pertaining to the issues, and to report his findings of fact and conclusions of law.
The…
2Cases cited14 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Cuno Engineering Corp. v. Automatic Devices Corp.Supreme Court of the United States · 1942
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1949
- Sinclair & Carroll Co. v. Interchemical Corp.Supreme Court of the United States · 1945
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3Cited by3 opinions
- Patrol Valve Co. v. Robertshaw-Fulton Controls Co.Court of Appeals for the Sixth Circuit · 1954
- Reed v. Cleveland Board of EducationCourt of Appeals for the Sixth Circuit · 1979
- Reed, III v. Cleveland Board of EducationCourt of Appeals for the Sixth Circuit · 1979