Granted Patent
Utility
US 6,197,891 · App. 08/717,233
Functionalized chain extended initiators for anionic polymerization
Inventors:
James A. Schwindeman, Eric John Granger, Robert C. Morrison, Conrad W. Kamienski, Robert James Letchford
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Sep 26, 1996
Inventors
James A. Schwindeman
Eric John Granger
Robert C. Morrison
Conrad W. Kamienski
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.