Granted Patent
Utility
US 5,948,863 · App. 08/932,970
Telechelic polymers and heterotelechelic polydiene block polymers with dual curing systems
Inventors:
David J. St. Clair, James R. Erickson
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Sep 18, 1997
Inventors
David J. St. Clair
James R. Erickson
Assignee (at issue)
SHELL OIL 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.