Granted Patent
Utility
US 4,586,735 · App. 06/573,848
Gasketed pipe union
Inventor:
Donn Innes
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jan 25, 1984
Inventor
Donn Innes
Assignee (at issue)
Nicholson Division, Datron Systems, 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.