Granted Patent
Utility
US 6,824,704 · App. 10/684,472
Stable tooth whitening gels containing high percentages of hydrogen peroxide
Inventors:
Thomas C. Chadwick, Heather L. Hunt
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Oct 15, 2003
Inventors
Thomas C. Chadwick
Heather L. Hunt
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.