Granted Patent
Utility
US 5,319,673 · App. 08/048,663
Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites
Inventor:
Robert D. Briskman
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Apr 16, 1993
Inventor
Robert D. Briskman
Assignee (at issue)
CD Radio Inc.
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.