Granted Patent
Utility
US 4,677,403 · App. 06/809,447
Temperature compensated microwave resonator
Inventor:
Rolf Kich
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Dec 16, 1985
Inventor
Rolf Kich
Assignee (at issue)
Hughes Aircraft 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.