Granted Patent
Utility
US 4,685,706 · App. 06/815,332
Releasable push-to-connect tube fitting
Inventors:
Leonard J. Kowal, Albert J. Schwarz, Norman Wells
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Dec 31, 1985
Inventors
Leonard J. Kowal
Albert J. Schwarz
Norman Wells
Assignee (at issue)
Clevite Industries 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.