Granted Patent
Utility
US 4,394,632 · App. 06/278,815
Millimeter-wave odd harmonic frequency multiplier
Inventor:
Chi P. Hu
Patented Case
View Patent ↗
Granted: Jul 19, 1983
Filed: Jun 29, 1981
Inventor
Chi P. Hu
Assignee (at issue)
Honeywell Limited
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.