Lukens Steel Co. v. American Locomotive Co.
Court of Appeals for the Second Circuit
1Opinion of the Court
SWAN, Chief Judge.
This is a patent infringement suit involving patent No. 2,078,056, issued April 20, 1937 to Everett Chapman and thereafter assigned to the plaintiff. In addition to the usual defenses of invalidity and non-infringement the defendant pleaded es-toppel, and by -counterclaim asserted that the patent was held upon a constructive trust. By agreement the issues raised by the estoppel defense and the counterclaim were tried in advance of the other issues. The defense of estoppel was sustained and a decree was entered dismissing both the complaint and the counterclaim. The plaintiff…
Also in this document: Concurrence.
2Cases cited19 opinions
- Menendez v. HoltSupreme Court of the United States · 1888
- Dickerson v. ColgroveSupreme Court of the United States · 1880
- De Forest Radio Telephone Co. v. United StatesSupreme Court of the United States · 1927
- Gillons v. Shell Co. of CaliforniaCourt of Appeals for the Ninth Circuit · 1936
- A. R. Mosler & Co. v. LurieCourt of Appeals for the Second Circuit · 1913
14 more not listed; retrieve them via the Exa API.
3Cited by36 opinions
- SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLCSupreme Court of the United States · 2017
- Hendrix Manufacturing Company, Inc. v. National Labor Relations BoardCourt of Appeals for the Fifth Circuit · 1963
- Potash Co. of America v. International Minerals & Chemical Corp.Court of Appeals for the Tenth Circuit · 1954
- Vincent I. Whitman v. Walt Disney Productions, Inc., a Corporation Walter E. Disney, an Individual John Doe OneCourt of Appeals for the Ninth Circuit · 1958
- Flynn & Emrich Company v. Henry B. Greenwood and Greenwood Engineering Company, Inc.Court of Appeals for the Fourth Circuit · 1957
31 more not listed; retrieve them via the Exa API.