Granted Patent
Utility
US 6,653,271 · App. 10/112,992
Composition and method for bleaching a substrate
Inventors:
Ronald Hage, Simon Veerman
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 1, 2002
Inventors
Ronald Hage
Simon Veerman
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.