Granted Patent
Utility
US 5,314,073 · App. 08/055,595
Phosphate flotation using sulfo-polyesters
Inventors:
Mahendra K. Sharma, George J. O'Neill, Brij M. Moudgil
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: May 3, 1993
Inventors
Mahendra K. Sharma
George J. O'Neill
Brij M. Moudgil
Assignee (at issue)
EASTMAN KODAK 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.