Granted Patent
Utility
US 5,962,553 · App. 08/708,241
Organoclay-polymer composites
Inventor:
Mark W. Ellsworth
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Sep 3, 1996
Inventor
Mark W. Ellsworth
Assignee (at issue)
Raychem Limited
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.