Granted Patent
Utility
US 4,404,987 · App. 06/305,236
Cap nut for a trip cock device including a detent arrangement for overriding automatic reset
Inventors:
Robert J. Bridigum, William Stewart Johnston
Patented Case
View Patent ↗
Granted: Sep 20, 1983
Filed: Sep 24, 1981
Inventors
Robert J. Bridigum
William Stewart Johnston
Assignee (at issue)
American Standard Inc.
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.