Granted Patent
Utility
US 5,068,490 · App. 07/534,696
BF3-tertiary etherate complexes for isobutylene polymerization
Inventor:
Bruce Eaton
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Jun 6, 1990
Inventor
Bruce Eaton
Assignee (at issue)
Amoco Corporation
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.