Granted Patent
Utility
US 5,111,504 · App. 07/568,990
Information processing apparatus with replaceable security element
Inventors:
James Esserman, Paul Moroney
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Aug 17, 1990
Inventors
James Esserman
Paul Moroney
Assignee (at issue)
General Instrument 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.