Granted Patent
Utility
US 5,757,918 · App. 08/727,174
Method and apparatus for user and security device authentication
Inventor:
W. Dale Hopkins
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Sep 30, 1996
Inventor
W. Dale Hopkins
Assignee (at issue)
Tandem Computers Incorporated
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.