Granted Patent
Utility
US 4,441,725 · App. 06/366,914
Quad bolt
Inventor:
Kent T. Bailey
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: Apr 9, 1982
Inventor
Kent T. Bailey
Assignee (at issue)
Thornhill Craver 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.