Granted Patent
Utility
US 4,967,174 · App. 07/397,608
Rotating coaxial switch
Inventors:
Harold H. Yee, James F. Hudson
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Aug 23, 1989
Inventors
Harold H. Yee
James F. Hudson
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.