Granted Patent
Utility
US 5,439,677 · App. 08/022,828
Compositions and methods for treating hair using a mixture of polysiloxanes
Inventor:
Arturo A. Villamarin
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Feb 24, 1993
Inventor
Arturo A. Villamarin
Assignee (at issue)
The Dial Corporation
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.