Granted Patent
Utility
US 4,501,866 · App. 06/633,814
Continuous method for preparing high cis-1,4 polybutadiene
Inventors:
David M. Roggeman, Shrikant R. Malani, Jung W. Kang
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Jul 23, 1984
Inventors
David M. Roggeman
Shrikant R. Malani
Jung W. Kang
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.