Granted Patent
Utility
US 4,631,349 · App. 06/748,733
Heterogeneous catalyst process
Inventors:
Dixie E. Goins, Silas W. Holmes, Edward A. Burt
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Jun 25, 1985
Inventors
Dixie E. Goins
Silas W. Holmes
Edward A. Burt
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.