Granted Patent
Utility
US 6,764,992 · App. 09/852,095
Soil release polymers and laundry detergent compositions containing them
Inventors:
Velayudhan Nair Gopa Kumar, Anuradha Moulee
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: May 9, 2001
Inventors
Velayudhan Nair Gopa Kumar
Anuradha Moulee
Assignee (at issue)
Unilever Home & Personal Care USA, Division of Conopco, Inc.
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.