Granted Patent
Utility
US 5,880,217 · App. 08/654,463
Telechelic and heterotelechelic polymers with dual curing agents
Inventors:
David J. St. Clair, James R. Erickson
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: May 28, 1996
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.