Granted Patent
Utility
US 5,437,809 · App. 08/074,821
Shampoo compositions with dimethicone copolyols
Inventor:
Dwaipayan Chaudhuri
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Sep 9, 1993
Inventor
Dwaipayan Chaudhuri
Assignee (at issue)
The Gillette Company LLC
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.