Granted Patent
Utility
US 5,677,953 · App. 08/485,817
System and method for access control for portable data storage media
Inventor:
Janet L. Dolphin
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 7, 1995
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.