Granted Patent
Utility
US 5,670,949 · App. 08/173,306
Carbon monoxide/hydrocarbon thin film sensor
Inventors:
Kevin W. Kirby, Hiroshi Kimura, M. Duchesne Courtney
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Dec 23, 1993
Inventors
Kevin W. Kirby
Hiroshi Kimura
M. Duchesne Courtney
Assignee (at issue)
Hughes Aircraft Company
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.