Granted Patent
Utility
US 4,716,080 · App. 07/036,412
Size composition
Inventor:
David Lewin
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: Apr 9, 1987
Inventor
David Lewin
Assignee (at issue)
Owens Corning Fiberglass Corporation
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.