Granted Patent
Utility
US 4,581,637 · App. 06/512,294
PIN diode modulator
Inventor:
Robert A. Stender
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Jul 8, 1983
Inventor
Robert A. Stender
Assignee (at issue)
Zenith Electronics LLC
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.