Granted Patent
Utility
US 4,932,038 · App. 07/262,696
Phase modulator circuit
Inventor:
Geoffrey G. Windus
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Oct 26, 1988
Inventor
Geoffrey G. Windus
Assignee (at issue)
STC PLC
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.