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:
Oct. 06, 2015
Filed:
Sep. 02, 2008
Jeffrey J. Lokken, Buffalo, NY (US);
Jeffrey J. Lokken, Buffalo, NY (US);
Lornamead Brands, Inc., Tonawanda, NY (US);
Abstract
A dissolving strip for tooth whitening the strip having at least a first tooth contacting layer and a second outer layer. The first tooth contacting layer has a solid tooth whitening active in an amount which reacts within a predetermined time when placed on a tooth. The second outer layer has a blend of polymers having different molecular weights; the blend of polymers being selected to dissolve after the predetermined time has elapsed. The outer layer contains the tooth whitening active on said tooth until the active is substantially used up. A method of forming a dissolving tooth whitening strip is also provided, in which the outer layer is formed on a backing layer followed by the inner layer being formed on the outer layer.