Granted Patent
Utility
US 4,429,091 · App. 06/473,473
Oligomeric oxolanyl alkanes as modifiers for polymerization of dienes using lithium-based initiators
Inventor:
James E. Hall
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Mar 9, 1983
Inventor
James E. Hall
Assignee (at issue)
The Firestone Tire & Rubber 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.