Granted Patent
Utility
US 4,232,194 · App. 06/021,255
Voice encryption system
Inventor:
Robert Adams
Patented Case
View Patent ↗
Granted: Nov 4, 1980
Filed: Mar 16, 1979
Inventor
Robert Adams
Assignee (at issue)
Ocean Technology, 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.