Granted Patent
Utility
US 5,810,605 · App. 08/334,776
Computerized repositories applied to education
Inventor:
David M. Siefert
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Nov 4, 1994
Inventor
David M. Siefert
Assignee (at issue)
NCR 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.