Granted Patent
Utility
US 5,285,174 · App. 07/996,206
Temperature-compensated waveguide isolator
Inventors:
Omar M. Al-Bundak, Antonio Luna
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Dec 23, 1992
Inventors
Omar M. Al-Bundak
Antonio Luna
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.