Granted Patent
Utility
US 5,534,205 · App. 08/286,297
Method for preparing polybenzoxazole or polybenzothiazole fibers
Inventors:
Timothy L. Faley, Michael E. Mills, Yoshihiko Teramoto, Douglas E. Turek, Kazuyuki Yabuki
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Aug 5, 1994
Inventors
Timothy L. Faley
Michael E. Mills
Yoshihiko Teramoto
Douglas E. Turek
Kazuyuki Yabuki
Assignee (at issue)
THE DOW CHEMICAL 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.