Granted Patent
Utility
US 5,482,527 · App. 08/309,236
Spinner apparatus for producing dual component fibers
Inventor:
Witold S. Czastkiewicz
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Sep 20, 1994
Inventor
Witold S. Czastkiewicz
Assignee (at issue)
Owens-Corning Fiberglas Technology, Inc.
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.