Granted Patent
Utility
US 4,874,886 · App. 07/268,118
Novel fluorinated bis(salicylates)
Inventor:
Charles B. Grant
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Nov 7, 1988
Inventor
Charles B. Grant
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.