Granted Patent
Utility
US 4,701,489 · App. 06/904,579
Process for the production of stable noncorrosive amorphous polyalphaolefins
Inventors:
Michael P. Hughes, Brian J. Pellon
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Sep 8, 1986
Inventors
Michael P. Hughes
Brian J. Pellon
Assignee (at issue)
El Paso Products 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.