Granted Patent
Utility
US 6,133,350 · App. 08/904,528
Oil free compounds of styrenic block copolymers, amorphous polyolefins, and carbon black
Inventors:
Robert Q. Kluttz, Harriet Kendrick
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Aug 1, 1997
Inventors
Robert Q. Kluttz
Harriet Kendrick
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.