Granted Patent
Utility
US 5,713,607 · App. 08/320,665
Pipe coupling assembly, system and method
Inventor:
Michael C. Webb
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Oct 11, 1994
Inventor
Michael C. Webb
Assignee (at issue)
Environ Products, 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.