Granted Patent
Utility
US 4,944,008 · App. 07/157,002
Electronic keying scheme for locking data
Inventors:
Gerald V. Piosenka, William R. Worger, Michael A. Savage
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Feb 18, 1988
Inventors
Gerald V. Piosenka
William R. Worger
Michael A. Savage
Assignee (at issue)
Motorola, 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.