Legal Opinion
Larsen Products Corp. v. Perfect Paint Products, Inc.
District Court, D. Maryland
Decided February 10, 1961No. Civ. No. 10916PublishedCited by 4 opinions
1Opinion of the Court
THOMSEN, Chief Judge.
This is a patent infringement suit, in which the usual issues of prior art, public use and infringement are complicated by plaintiffs’ frequent change of position on what the invention really was.
Briefly, the case is this. Before 1949 Larsen discovered that a polyvinyl acetate emulsion,1 of the type then being sold as a library adhesive, could be used to bind plaster to a smooth surface, such as a wall or ceiling, simply by brushing the emulsion onto the surface, allowing it to dry until it formed a film, and then applying the wet plaster onto the film. The film so…
2Cases cited23 opinions
- The Barbed Wire PatentSupreme Court of the United States · 1892
- Eibel Process Co. v. Minnesota & Ontario Paper Co.Supreme Court of the United States · 1923
- Radio Corp. of America v. Radio Engineering Laboratories, Inc.Supreme Court of the United States · 1934
- Muncie Gear Works, Inc. v. Outboard, Marine & Manufacturing Co.Supreme Court of the United States · 1942
- Davison Chemical Corp. v. Joliet Chemicals, Inc.Court of Appeals for the Seventh Circuit · 1950
18 more not listed; retrieve them via the Exa API.
3Cited by4 opinions
- Chemithon Corporation v. Procter & Gamble CompanyDistrict Court, D. Maryland · 1968
- Indiana General Corp. v. Lockheed Aircraft Corp.District Court, S.D. California · 1966
- Automated Building Components, Inc. v. Hydro-Air Engineering, Inc.District Court, E.D. Missouri · 1964
- Oxy Metal Industries Corp. v. Roper Corp.District Court, D. Maryland · 1984