Granted Patent
Utility
US 4,886,407 · App. 07/256,687
Alignment and retention mechanism for barrel nut fastener apparatus
Inventor:
Thomas E. Harbin
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Oct 12, 1988
Inventor
Thomas E. Harbin
Assignee (at issue)
REXNORD GMBH
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.