Granted Patent
Utility
US 4,081,039 · App. 05/736,396
Connecting assembly and method
Inventor:
Harold W. R. Wardlaw
Patented Case
View Patent ↗
Granted: Mar 28, 1978
Filed: Oct 28, 1976
Inventor
Harold W. R. Wardlaw
Assignee (at issue)
Brown Oil Tools, 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.