Granted Patent
Utility
US 4,931,802 · App. 07/167,287
Multiple spot-beam systems for satellite communications
Inventors:
Francois T. Assal, John V. Evans, Christoph E. Mahle, Amir I. Zaghloul, Ramesh Gupta
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Mar 11, 1988
Inventors
Francois T. Assal
John V. Evans
Christoph E. Mahle
Amir I. Zaghloul
Ramesh Gupta
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.