Granted Patent
Utility
US 6,566,473 · App. 10/300,124
Process for making a vinyl amide polymer composition for skin and hair compositions
Inventors:
Donald I. Prettypaul, Jenn S. Shih
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Nov 20, 2002
Inventors
Donald I. Prettypaul
Jenn S. Shih
Assignee (at issue)
ISP INVESTMENTS 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.