Granted Patent
Utility
US 5,582,913 · App. 08/518,627
Polyester/polyamide composite fiber
Inventor:
F. Holmes Simons
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Aug 23, 1995
Inventor
F. Holmes Simons
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.