Granted Patent
Utility
US 5,457,746 · App. 08/359,347
System and method for access control for portable data storage media
Inventor:
Janet L. Dolphin
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Dec 19, 1994
Inventor
Janet L. Dolphin
Assignee (at issue)
SPYRUS, INC.
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.