Granted Patent
Utility
US 4,685,705 · App. 06/879,770
Large deflection pipe coupling
Inventor:
Lawrence S. Jones
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Jun 27, 1986
Inventor
Lawrence S. Jones
Assignee (at issue)
United States Pipe and Foundry Company, LLC
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.