Granted Patent
Utility
US 4,956,409 · App. 07/225,566
Binder chemistry
Inventor:
Ronald F. Sieloff
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Jul 26, 1988
Inventor
Ronald F. Sieloff
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.