Granted Patent
Utility
US 5,398,976 · App. 07/923,831
Connecting device for pipe assemblies
Inventor:
Michael C. Webb
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Aug 3, 1992
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.