Granted Patent
Utility
US 5,324,874 · App. 07/930,809
Process for a decarbromodiphenylethane predominate product having enhanced whiteness
Inventors:
George H. Ransford, Phillip R. DeVrou, John C. Parks
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Aug 17, 1992
Inventors
George H. Ransford
Phillip R. DeVrou
John C. Parks
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.