Granted Patent
Utility
US 6,399,111 · App. 09/395,769
Amorphous silicas and oral compositions
Inventor:
Peter W. Stanier
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Sep 14, 1999
Inventor
Peter W. Stanier
Assignee (at issue)
Crosfield Limited
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.