Granted Patent
Utility
US 5,429,787 · App. 08/142,526
Method for rapid drying of a polybenzazole fiber
Inventors:
Jang-hi Im, Chieh-Chun Chau, Hiroki Murase, Tooru Kitagawa, Takaharu Ichiryu
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Nov 2, 1993
Inventors
Jang-hi Im
Chieh-Chun Chau
Hiroki Murase
Tooru Kitagawa
Takaharu Ichiryu
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.