Granted Patent
Utility
US 4,786,089 · App. 06/931,769
Automatically locking tubing coupler
Inventor:
William McConnell
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Nov 17, 1986
Inventor
William McConnell
Assignee (at issue)
Ford Motor Company
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.