Granted Patent
Utility
US 5,404,394 · App. 08/065,017
Secure communication system
Inventors:
Spiros Dimolitsas, Roderick Ragland, Farhad Hemmati
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: May 24, 1993
Inventors
Spiros Dimolitsas
Roderick Ragland
Farhad Hemmati
Assignee (at issue)
Comsat, 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.