Granted Patent
Utility
US 4,540,957 · App. 06/492,305
Amplitude modulator forms two phase-shifted pulse trains and combines them
Inventor:
George Hanna
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: May 6, 1983
Inventor
George Hanna
Assignee (at issue)
Continental Electronics Mfg. Co.
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.