Granted Patent
Utility
US 6,350,797 · App. 09/469,926
Use of cyclic sulfur silanes as coupling agents in sulfur-vulcanizable, silica-reinforced tire rubber compositions
Inventor:
Keith J. Weller
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Dec 22, 1999
Inventor
Keith J. Weller
Assignee (at issue)
Crompton 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.