Granted Patent
Utility
US 6,117,834 · App. 09/357,560
Dye-transfer-inhibiting compositions and particulate detergent compositions containing them
Inventors:
Hendrik Ruijter, Antonius Henricus J. Strijbosch
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Jul 8, 1999
Inventors
Hendrik Ruijter
Antonius Henricus J. Strijbosch
Assignee (at issue)
Unilever Home & Personal Care USA
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.