Granted Patent
Utility
US 4,654,447 · App. 06/831,400
Process for the preparation of tribromotetramethylbiphenol and related compounds
Inventor:
Abel Mendoza
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Feb 20, 1986
Inventor
Abel Mendoza
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.