Granted Patent
Utility
US 5,512,266 · App. 08/301,409
Aluminosilicates and detergent composition
Inventors:
Graham T. Brown, Theo Jan Osinga, Michael J. Parkingston, Andrew Thomas Steel
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Sep 7, 1994
Inventors
Graham T. Brown
Theo Jan Osinga
Michael J. Parkingston
Andrew Thomas Steel
Assignee (at issue)
Unilever Patent Holdings B.V.
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.