Granted Patent
Utility
US 5,286,833 · App. 07/985,060
Polybenzazole fiber with ultra-high physical properties
Inventors:
Robert A. Bubeck, Stephen J. Nolan, Chieh-Chun Chau, Steven Rosenberg, Mark D. Newsham, Myrna Serrano
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Dec 3, 1992
Inventors
Robert A. Bubeck
Stephen J. Nolan
Chieh-Chun Chau
Steven Rosenberg
Mark D. Newsham
Myrna Serrano
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.