Granted Patent
Utility
US 6,331,608 · App. 09/394,790
Process for producing poly(arylene sulfide)
Inventors:
Fernando C. Vidaurri, Jon F. Geibel, James W. Waterman, Jay M. Chaffin, Aubrey South, Jr., Jeffrey S. Fodor, Glenn F. Kile
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Sep 13, 1999
Inventors
Fernando C. Vidaurri
Jon F. Geibel
James W. Waterman
Jay M. Chaffin
Aubrey South, Jr.
Jeffrey S. Fodor
Glenn F. Kile
Assignee (at issue)
Phillips Petroleum 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.