Granted Patent
Utility
US 6,533,582 · App. 09/842,995
In-office tooth whitening
Inventor:
Sherrill F. Lindquist
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Apr 26, 2001
Inventor
Sherrill F. Lindquist
Assignee (at issue)
Ultradent Products, 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.