Granted Patent
Utility
US 4,954,925 · App. 07/292,282
Capacitive sensor with minimized dielectric drift
Inventors:
Robert H. Bullis, James L. Swindal, Walter J. Wiegand, Charles B. Brahm, Harold D. Meyer
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Dec 30, 1988
Inventors
Robert H. Bullis
James L. Swindal
Walter J. Wiegand
Charles B. Brahm
Harold D. Meyer
Assignee (at issue)
UNITED TECHNOLOGIES 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.