Granted Patent
Utility
US 4,245,747 · App. 05/845,803
Coupler
Inventor:
Leslie N. Roberts
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Oct 27, 1977
Inventor
Leslie N. Roberts
Assignee (at issue)
BUCKEYE INTERNATIONAL, 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.