Granted Patent
Utility
US 5,237,221 · App. 07/797,613
On-chip pull-up circuit which may be selectively disabled
Inventor:
Kenneth E. Posse
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Nov 25, 1991
Inventor
Kenneth E. Posse
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.