Granted Patent
Utility
US 4,482,278 · App. 06/486,689
Bolt
Inventor:
James D. Dorn
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Apr 20, 1983
Inventor
James D. Dorn
Assignee (at issue)
Brock Manufacturing, 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.