Granted Patent
Utility
US 5,877,713 · App. 08/940,597
Digital programmable phase shifter and A/D converter using such a phase shifter
Inventor:
Herve Marie
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Sep 30, 1997
Inventor
Herve Marie
Assignee (at issue)
U.S. Philips Corporation
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.