Granted Patent
Utility
US 4,619,094 · App. 06/807,632
Non-penetrating mechanical fastener for roofing membrane and method of applying same
Inventor:
James H. C. Yang
Patented Case
View Patent ↗
Granted: Oct 28, 1986
Filed: Dec 11, 1985
Inventor
James H. C. Yang
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.