Granted Patent
Utility
US 4,401,800 · App. 06/388,347
Lithium alkoxide diamines as modifiers for polymerization of dienes using lithium-based initiators
Inventor:
James E. Hall
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Jun 14, 1982
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.