Granted Patent
Utility
US 5,553,472 · App. 08/385,943
Drive apparatus and portable power source for computerized combination locks
Inventor:
Thomas E. Jasper
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Feb 9, 1995
Inventor
Thomas E. Jasper
Assignee (at issue)
Lockmasters, 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.