The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1992
Filed:
Aug. 09, 1990
Applicant:
Inventor:
Harvey N Silverman, Pepper Pike, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
128861 ; 433215 ; 433216 ;
Abstract
A method for whitening the teeth of a person, comprises the steps of a retainer made of a plastic material adapted to be moldable when heated for conforming to the shape of one of the upper and lower teeth of the person; heating the retainer until soft and moldable without losing its basic shape; fitting the retainer around one of the upper and lower teeth; applying a layer of tooth whitening composition inside the retainer; wearing the loaded retainer for several hours each day until the teeth to be whitened have become whiter; replacing the tooth whitening composition every 1-2 hours; and repeating the above steps with another retainer for the other of lower and upper teeth.