Granted Patent
Utility
US 4,630,422 · App. 06/693,550
Penetrating roofing mechanical fastening sealing system and method
Inventor:
Heinz W. Beneze
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Jan 22, 1985
Inventor
Heinz W. Beneze
Assignee (at issue)
The Firestone Tire & Rubber 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.