Granted Patent
Utility
US 4,925,962 · App. 07/261,610
Trimethylaluminum process
Inventors:
William R. Beard, Herbert M. Scull
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Oct 24, 1988
Inventors
William R. Beard
Herbert M. Scull
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.