Granted Patent
Utility
US 4,408,093 · App. 06/270,694
Cryptographic encoder-decoder
Inventor:
Harry Place
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: Jun 5, 1981
Inventor
Harry Place
Assignee (at issue)
ITT Industries
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.