Granted Patent
Utility
US 4,274,855 · App. 06/114,030
Method and apparatus for forming and treating kinky fibers from glass
Inventor:
Robert G. Russell
Patented Case
View Patent ↗
Granted: Jun 23, 1981
Filed: Jan 21, 1980
Inventor
Robert G. Russell
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.