Granted Patent
Utility
US 5,502,989 · App. 08/307,113
Computer physical security device
Inventors:
William Murray, Stewart R. Carl, Arthur H. Zarnowitz
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Sep 16, 1994
Inventors
William Murray
Stewart R. Carl
Arthur H. Zarnowitz
Assignee (at issue)
Kensington Microware Limited
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.