Granted Patent
Utility
US 6,458,304 · App. 09/533,397
Flash spinning process and solutions of polyester
Inventors:
Hyunkook Shin, Joseph Robert Guckert, Joseph V. Kurian
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Mar 22, 2000
Inventors
Hyunkook Shin
Joseph Robert Guckert
Joseph V. Kurian
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.