Granted Patent
Utility
US 4,535,307 · App. 06/393,961
Microwave circuit device package
Inventor:
Toshikazu Tsukii
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Jun 30, 1982
Inventor
Toshikazu Tsukii
Assignee (at issue)
Raytheon Company
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.