Granted Patent
Utility
US 5,293,169 · App. 08/049,927
Switched capacitor circuit for precision resistance
Inventors:
Richard A. Baumgartner, Charles E. Moore, Earl C. Herlelkson
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Apr 20, 1993
Inventors
Richard A. Baumgartner
Charles E. Moore
Earl C. Herlelkson
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.