Legal Opinion
Ladenson v. Overspred Stoker Co.
Court of Appeals for the Seventh Circuit
Decided March 29, 1937No. 6024PublishedCited by 4 opinions
1Opinion of the Court
SPARKS, Circuit Judge.
This action was instituted by appellee under the Declaratory Judgment Act, section 274d of the Judicial Code (28 U.S.C.A. § 400), to determine the validity of United States Patent, No. 1,436,794, to Cotton. The patent was issued November 28, 1922, under an application filed July 27, 1920, and prior to this action was assigned to appellants. The disclosure relates to a mechanical stoker for coal, of the overspread type, in which finely divided coal is distributed -on top of a fuel bed within the furnace.
The issues raised and relied upon are the validity of the. patent’s…
2Cases cited4 opinions
- I. T. S. Rubber Co. v. Essex Rubber Co.Supreme Court of the United States · 1926
- Smith v. Magic City Kennel Club, Inc.Supreme Court of the United States · 1931
- Atkins v. GordonCourt of Appeals for the Seventh Circuit · 1936
- Sears, Roebuck & Co. v. ValjeanCourt of Appeals for the Seventh Circuit · 1935
3Cited by4 opinions
- In Re Lawrence B. LockwoodCourt of Appeals for the Federal Circuit · 1995
- C-Thru Products, Inc. v. Uniflex, Inc.District Court, E.D. New York · 1966
- Thomas v. Simmons Co.Court of Appeals for the Seventh Circuit · 1942
- In Re Lawrence B. LockwoodCourt of Appeals for the Federal Circuit · 1995