Granted Patent
Utility
US 4,950,831 · App. 07/413,961
Coupling process
Inventors:
James S. Staton, Ronald A. Turnblad, Jr., Robert B. Agee
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Sep 28, 1989
Inventors
James S. Staton
Ronald A. Turnblad, Jr.
Robert B. Agee
Assignee (at issue)
Ethyl Corporation
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.