Granted Patent
Utility
US 6,121,474 · App. 09/256,737
Amine anionic polymerization initiators and functionalized polymers derived therefrom
Inventors:
James A. Schwindeman, Eric John Granger, Roderic P. Quirk, Randy W. Hall, Robert James Letchford
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Feb 24, 1999
Inventors
James A. Schwindeman
Eric John Granger
Roderic P. Quirk
Randy W. Hall
Robert James Letchford
Assignee (at issue)
FMC 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.