Granted Patent
Utility
US 5,317,280 · App. 08/125,045
High impedance circuit using PFET
Inventors:
Robert A. Zimmer, Charles E. Moore
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Sep 21, 1993
Inventors
Robert A. Zimmer
Charles E. Moore
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.