Granted Patent
Utility
US 4,417,335 · App. 06/323,345
Digital satellite telephone office
Inventors:
Michael J. Kelly, Robert L. Lindsay, Alex W. Kobylar, David J. Stelte
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Nov 20, 1981
Inventors
Michael J. Kelly
Robert L. Lindsay
Alex W. Kobylar
David J. Stelte
Assignee (at issue)
GTE Automatic Electric Labs 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.