Legal Opinion
Laser Alignment, Inc., and Contractors Automated Devices, Inc. v. Woodruff & Sons, Inc., and Roy J. Woodruff
Court of Appeals for the Seventh Circuit
Decided January 22, 1974No. 72-1254, 72-1255PublishedCited by 25 opinions
1Opinion of the Court
PELL, Circuit Judge.
Plaintiffs Laser Alignment, Inc., (Alignment) and Contractors Automated Devices, Inc., (Contractors) brought this patent infringement action against Woodruff & Sons, Inc., (Woodruff) and Roy J. Woodruff, alleging infringement of Trice Patent No., 3,116,557, owned by Contractors and licensed exclusively to Alignment. The Trice patent, issued January 7, 1964, and entitled “Method and Means for Laying Sewer Pipe,” involves, in the words of the patent, “a method and means for laying said pipeline on a selected grade line by resort to establishing a light beam line of…
2Cases cited20 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Continental Paper Bag Co. v. Eastern Paper Bag Co.Supreme Court of the United States · 1908
- Seymour v. OsborneSupreme Court of the United States · 1871
- Schriber-Schroth Co. v. Cleveland Trust Co.Supreme Court of the United States · 1940
- Alexander Milburn Co. v. Davis-Bournonville Co.Supreme Court of the United States · 1926
15 more not listed; retrieve them via the Exa API.
3Cited by25 opinions
- Smith International, Inc., a California Corporation v. Hughes Tool Company, a Delaware CorporationCourt of Appeals for the Federal Circuit · 1983
- Super Products Corporation, a Wisconsin Corporation v. D P Way Corporation, a Wisconsin CorporationCourt of Appeals for the Seventh Circuit · 1977
- Chicago Rawhide Manufacturing Co. v. Crane Packing Co.Court of Appeals for the Seventh Circuit · 1975
- Coleco Industries, Inc. v. United States International Trade CommissionCourt of Customs and Patent Appeals · 1978
- Coleco Industries, Inc. v. International Trade CommissionCourt of Customs and Patent Appeals · 1978
20 more not listed; retrieve them via the Exa API.