Granted Patent
Utility
US 5,470,640 · App. 08/156,747
High loft and high strength nonwoven fabric
Inventor:
James P. Modrak
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Nov 24, 1993
Inventor
James P. Modrak
Assignee (at issue)
HERCULES LLC
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.