Granted Patent
Utility
US 4,264,875 · App. 06/063,889
System for optical injection phase locking and switching of microwave oscillators
Inventors:
Robert G. Hunsperger, Michael K. Barnoski, Huan-Wun Yen
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Aug 3, 1979
Inventors
Robert G. Hunsperger
Michael K. Barnoski
Huan-Wun Yen
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.