IP Library Granted Patent US 4,909,976
Granted Patent Utility
US 4,909,976 · App. 07/191,446

Process for high speed melt spinning

Inventors: John A. Cuculo, Paul A. Tucker, Gao-Yuan Chen, Chon-Yie Lin, Jeffrey Denton, Ferdinand Lundberg
Patented Case View Patent ↗
Granted: Mar 20, 1990 Filed: May 9, 1988
Inventors
John A. Cuculo
Paul A. Tucker
Gao-Yuan Chen
Chon-Yie Lin
Jeffrey Denton
Ferdinand Lundberg
Assignee (at issue)
NORTH CAROLINA STATE UNIVERSITY

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 4,909,976
App. No.
07/191,446
Filed
1988-05-09
Granted
1990-03-20
Kind
A