Granted Patent
Utility
US 4,907,004 · App. 07/197,328
Power versatile satellite transmitter
Inventors:
John Zacharatos, Robert B. Williamson
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: May 23, 1988
Inventors
John Zacharatos
Robert B. Williamson
Assignee (at issue)
Spar Aerospace Limited
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.