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. 31, 2000
Filed:
Jul. 24, 1997
Applicant:
Inventors:
Thomas Schiff, Tiburon, CA (US);
Ira D Hill, Locust, NJ (US);
Assignee:
WhiteHill Oral Technologies, Inc., Locust, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A46B / ;
U.S. Cl.
CPC ...
151671 ; 152072 ; 428397 ; 428401 ;
Abstract
A toothbrush having an improved cleaning and abrasion efficiency, wherein the bristles are comprised of synthetic thermoplastic polymeric compositions, and contain longitudinal channels extending along the length thereof, having a depth sufficient to entrap a quantity of abrasive particles such that during brushing with a toothpaste, contact between the channel entrapped abrasive particles and the surfaces of the teeth is improved, resulting in a cleaning efficiency coefficient, CEC, above about 1.5 and, an abrasion efficiency coefficient, AEC, above about 1.5, while demonstrating suitable bristle wearability.