Granted Patent
Utility
US 5,258,489 · App. 08/026,666
Fluorinated poly(arylene sulfide)(arylene disulfide)
Inventors:
David R. Fagerburg, Jospeh Watkins, Paul B. Lawrence
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Mar 5, 1993
Inventors
David R. Fagerburg
Jospeh Watkins
Paul B. Lawrence
Assignee (at issue)
Eastman 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.