Granted Patent
Utility
US 6,833,076 · App. 10/149,784
Water treatment
Inventors:
Stephen Norman Batchelor, Denise Angela Carr, Robert John Crawford, Lynette Fairclough
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Aug 29, 2002
Inventors
Stephen Norman Batchelor
Denise Angela Carr
Robert John Crawford
Lynette Fairclough
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.