Granted Patent
Utility
US 4,975,951 · App. 07/488,472
IPPV programming distribution control system
Inventor:
Christopher J. Bennett
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Feb 26, 1990
Inventor
Christopher J. Bennett
Assignee (at issue)
General Instrument 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.