Granted Patent
Utility
US 6,255,387 · App. 09/004,368
Derivatized solid sheared polymer blends and process for their preparation
Inventors:
Errol J. Olivier, Robert Patterson, Peter N. Nugara
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Jan 8, 1998
Inventors
Errol J. Olivier
Robert Patterson
Peter N. Nugara
Assignee (at issue)
Ethyl Additives 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.