Granted Patent
Utility
US 4,614,767 · App. 06/760,019
Moldable polyester-sulfone thermoplastic resin
Inventor:
Barry D. Dean
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Jul 29, 1985
Inventor
Barry D. Dean
Assignee (at issue)
Atlantic Richfield 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.