Granted Patent
Utility
US 5,922,307 · App. 08/719,569
Tooth bleaching compositions
Inventor:
Robert E. Montgomery
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Sep 25, 1996
Inventor
Robert E. Montgomery
Assignees (at issue)
R. Eric Montgomery
Idex Dental Sciences, Inc.
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.