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:
Dec. 18, 2001
Filed:
Jul. 29, 1998
Applicant:
Inventors:
Assignee:
Chesebrough-Pond's USA Co., division of Conopco, Inc., Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A46B 9/04 ;
U.S. Cl.
CPC ...
A46B 9/04 ;
Abstract
A toothbrush incorporating an indicator comprising a pressure indicating material which provides an optical signal without the provision of a power supply. Preferably, the pressure sensitive material is a piezochromic material, such as a liquid crystal cholesterol ester.