Granted Patent
Utility
US 5,252,949 · App. 07/751,029
Chemical sensor for carbon monoxide detection
Inventors:
Kevin W. Kirby, Hiroshi Kimura, Ricardo C. Pastor
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Aug 28, 1991
Inventors
Kevin W. Kirby
Hiroshi Kimura
Ricardo C. Pastor
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.