IP Library › Granted Patent US 5,582,667
Granted Patent Utility
US 5,582,667 · App. 08/356,013

Method of preparing multiconstituent fibers and nonwoven structures

Inventors: Rakesh Gupta, Jon R. Williams
Patented Case View Patent ↗
Granted: Dec 10, 1996 Filed: Dec 14, 1994
Inventors
Rakesh Gupta
Jon R. Williams
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,582,667
App. No.
08/356,013
Filed
1994-12-14
Granted
1996-12-10
Kind
A