IP Library › Granted Patent US 4,975,233
Granted Patent Utility
US 4,975,233 · App. 07/282,076

Method of producing an enhanced polyester copolymer fiber

Inventors: Eric J. Blaeser, Carl Steven Nichols
Patented Case View Patent ↗
Granted: Dec 4, 1990 Filed: Dec 9, 1988
Inventors
Eric J. Blaeser
Carl Steven Nichols
Assignee (at issue)
Hoechst Celanese Corporation

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Quick Facts
Patent No.
US 4,975,233
App. No.
07/282,076
Filed
1988-12-09
Granted
1990-12-04
Kind
A