Granted Patent
Utility
US 4,276,522 · App. 06/104,523
Circulator in a stripline microwave transmission line circuit
Inventor:
Leo E. Coerver
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Dec 17, 1979
Inventor
Leo E. Coerver
Assignee (at issue)
General Dynamics Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.