Granted Patent
Utility
US 4,867,907 · App. 07/078,200
Aqueous aryl fluorophosphite suspension
Inventors:
Lester P. J. Burton, Morris Blumberg
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Jul 27, 1987
Inventors
Lester P. J. Burton
Morris Blumberg
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.