Granted Patent
Utility
US 5,206,300 · App. 07/503,412
Functionalized elastomeric polymers
Inventor:
Linda R. Chamberlain
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Mar 30, 1990
Inventor
Linda R. Chamberlain
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.