Granted Patent
Utility
US 4,464,653 · App. 06/328,779
Combustible gas detection system
Inventor:
Joe K. Winner
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Dec 9, 1981
Inventor
Joe K. Winner
Assignee (at issue)
Bendix 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.