Granted Patent
Utility
US 4,763,875 · App. 07/082,401
Pneumatic coupling having a latching mechanism and a bleed-off valve for attachment to an air brake hose
Inventor:
James P. Chew
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Aug 6, 1987
Inventor
James P. Chew
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.