Granted Patent
Utility
US 4,537,426 · App. 06/391,826
Couplings for non-ferrous pipe
Inventor:
J. Warne Carter, Sr.
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Jun 24, 1982
Inventor
J. Warne Carter, Sr.
Assignee (at issue)
Ameron, 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.