Granted Patent
Utility
US 4,684,157 · App. 06/363,529
Hose coupling
Inventor:
Richard D. Smith
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Mar 30, 1982
Inventor
Richard D. Smith
Assignee (at issue)
Internationale Otrool Maatschappij Octropa B.V.
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.