Granted Patent
Utility
US 5,731,084 · App. 08/683,005
Zero twist yarn having periodic flat spots
Inventor:
Roy E. Smith
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Jul 16, 1996
Inventor
Roy E. Smith
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.