Granted Patent
Utility
US 4,901,349 · App. 07/140,267
Time dispersal encryption of TV signals
Inventors:
Sidney C. Metzger, Ronald K. Garlow
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Dec 31, 1987
Inventors
Sidney C. Metzger
Ronald K. Garlow
Assignee (at issue)
Communications Satellite 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.