Granted Patent
Utility
US 4,447,248 · App. 06/398,536
Method of making and using glass fiber forming feeders
Inventor:
Mohinder Singh Bhatti
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Jul 15, 1982
Inventor
Mohinder Singh Bhatti
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.