Granted Patent
Utility
US 4,908,463 · App. 07/279,496
Aluminoxane process
Inventor:
Scott A. Bottelberghe
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Dec 5, 1988
Inventor
Scott A. Bottelberghe
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.