Granted Patent
Utility
US 4,755,799 · App. 06/834,004
Microcomputer controlled combination lock security system
Inventor:
James P. Romano
Patented Case
View Patent ↗
Granted: Jul 5, 1988
Filed: Feb 27, 1986
Inventor
James P. Romano
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.