Granted Patent
Utility
US 6,097,816 · App. 08/418,195
Crypt key system
Inventors:
Shunichi Momiki, Makoto Saito
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Apr 7, 1995
Inventors
Shunichi Momiki
Makoto Saito
Assignee (at issue)
MITSUBISHI CORPORATION
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.