Granted Patent
Utility
US 5,083,293 · App. 07/297,137
Prevention of alteration of data stored in secure integrated circuit chip memory
Inventors:
Robert C. Gilberg, Paul Moroney, William A. Shumate
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: Jan 12, 1989
Inventors
Robert C. Gilberg
Paul Moroney
William A. Shumate
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.