Granted Patent
Utility
US 5,208,374 · App. 07/949,663
Amine oxide process
Inventors:
James E. Borland, Fred J. Impastato, Kim R. Smith
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Sep 23, 1992
Inventors
James E. Borland
Fred J. Impastato
Kim R. Smith
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.