Granted Patent
Utility
US 4,256,589 · App. 06/024,235
Fiber treating compositions comprising (a) blend of random copoly(oxyethylene-oxypropylene)butanols (b) alkali metal sulfur compound and (c) alkali metal organic phosphate compound
Inventors:
Bobby C. Carver, Raymond E. Donaldson
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Mar 26, 1979
Inventors
Bobby C. Carver
Raymond E. Donaldson
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.