Granted Patent
Utility
US 5,235,081 · App. 07/853,239
Method of removing gel forming materials from methylaluminoxanes
Inventor:
Samuel A. Sangokoya
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Mar 18, 1992
Inventor
Samuel A. Sangokoya
Assignee (at issue)
Ethyl 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.