Granted Patent
Utility
US 4,890,494 · App. 07/196,786
Atmospheric sensor
Inventors:
Paul C. Osbond, Roger W. Whatmore, John P. Auton
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: May 17, 1988
Inventors
Paul C. Osbond
Roger W. Whatmore
John P. Auton
Assignee (at issue)
Plessey Overseas Limited
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.