Legal Opinion
Balaban v. Polyfoto Corporation
District Court, D. Delaware
Decided September 26, 1942No. 15PublishedCited by 10 opinions
1Opinion of the Court
JONES, Circuit Judge,
specially assigned.
The plaintiffs sue for alleged patent infringement and the defendant answers setting up (1) patent invalidity, (2) noninfringement and (3) file wrapper estoppel. From the evidence adduced at trial, we make the following
Findings of'Fact.
1. Alexander Balaban, one of the plaintiffs, is the owner of the patent in suit, No. 2,083,215, issued to him June 8, 1937, for a “photographic diffusing device for enlarging and projection printing”.
2. The other plaintiff, Robert B. Wheel-an, is the owner of license rights under the Balaban patent, exclusive in the field…
2Cases cited27 opinions
- Continental Paper Bag Co. v. Eastern Paper Bag Co.Supreme Court of the United States · 1908
- Topliff v. TopliffSupreme Court of the United States · 1892
- Tilghman v. ProctorSupreme Court of the United States · 1881
- Carnegie Steel Co. v. Cambria Iron Co.Supreme Court of the United States · 1902
- White v. DunbarSupreme Court of the United States · 1886
22 more not listed; retrieve them via the Exa API.
3Cited by10 opinions
- Baldwin-Lima-Hamilton Corp. v. Tatnall Measuring Systems Co.District Court, E.D. Pennsylvania · 1958
- International Nickel Company v. Ford Motor CompanyDistrict Court, S.D. New York · 1958
- CIVIX-DDI, LLC v. Cellco PartnershipDistrict Court, N.D. Illinois · 2005
- Bourns, Inc. v. Dale Electronics Inc.District Court, D. Nebraska · 1969
- Engelhard Industries, Inc. v. Sel-Rex CorporationDistrict Court, D. New Jersey · 1966
5 more not listed; retrieve them via the Exa API.