Legal Opinion
Solenoid Devices, Inc. v. Ledex, Inc.
District Court, S.D. California
Decided May 5, 1965No. 65-480PublishedCited by 4 opinions
1Opinion of the Court
BYRNE, District Judge.
On March 26, 1965, Solenoid Devices Inc. filed in this court a complaint for declaratory judgment of patent invalidity against Ledex Inc. Plaintiff alleged that since the summer of 1963, it has been designing, manufacturing and selling certain electro-mechanical devices, among which is a certain rotary solenoid; that on September 15, 1964, a U. S. patent was issued to defendant (as assignee of the applicant) for a “solenoid operated rotary actuator” ; that subsequent to the issuance of that patent defendant asserted to plaintiff that plaintiff’s rotary solenoid infringed…
2Cases cited4 opinions
- Aetna Life Insurance v. HaworthSupreme Court of the United States · 1937
- Brillhart v. Excess Insurance Co. of AmericaSupreme Court of the United States · 1942
- Kerotest Manufacturing Co. v. C-O-Two Fire Equipment Co.Supreme Court of the United States · 1952
- Thermo-Plastics Corp. v. International Pulverizing Corp.District Court, D. New Jersey · 1941
3Cited by4 opinions
- George S. Bailey v. Agusto G. Dequevedo and K. E. Van BuskirkCourt of Appeals for the Third Circuit · 1967
- Owatonna Manufacturing Company v. Melroe CompanyDistrict Court, D. Minnesota · 1969
- Dyform Concrete (Prestressed) Ltd. v. Spiroll Corp. Ltd.District Court, D. Minnesota · 1973
- Ethicon, Inc. v. American Cyanamid CompanyDistrict Court, D. New Jersey · 1973