Granted Patent
Utility
US 6,692,687 · App. 09/758,309
Method for high-speed spinning of bicomponent fibers
Inventors:
Jing-Chung Chang, Joseph V. Kurian, Young D. Nguyen, James E. Van Trump, George Vassilatos
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Jan 11, 2001
Inventors
Jing-Chung Chang
Joseph V. Kurian
Young D. Nguyen
James E. Van Trump
George Vassilatos
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.