Granted Patent
Utility
US 5,272,246 · App. 08/037,473
Polyester copolymer fiber having enhanced strength and dyeability properties
Inventors:
Joseph A. Roderiguez, Theodore D. Meiss
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Mar 24, 1993
Inventors
Joseph A. Roderiguez
Theodore D. Meiss
Assignee (at issue)
Hoechst Celanese Corporation
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.