Granted Patent
Utility
US 4,569,540 · App. 06/566,564
Piping suspender with metal-to-metal seal
Inventor:
John Beson
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: Dec 29, 1983
Inventor
John Beson
Assignee (at issue)
Beson Technology, 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.