Granted Patent
Utility
US 5,809,861 · App. 07/157,408
Yarn having a braided covering thereon and safety apparel knitted therefrom
Inventor:
Joseph Hummel
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Feb 18, 1988
Inventor
Joseph Hummel
Assignee (at issue)
Whizard Protective Wear 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.