Granted Patent
Utility
US 5,733,646 · App. 08/466,619
Thermally bondable fiber for high strength non-woven fabrics
Inventors:
Rakesh Gupta, James E. Mallory, Kunihiko Takeuchi
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Jun 6, 1995
Inventors
Rakesh Gupta
James E. Mallory
Kunihiko Takeuchi
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.