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. 22, 2020
Filed:
Oct. 10, 2017
The Procter & Gamble Company, Cincinnati, OH (US);
Erwin Paul Mark, Eschborn, DE;
Jochen Erich Kawerau, Kronberg/Taunus, DE;
Jens Alinski, Kelkheim, DE;
Sven Alexander Franke, Darmstadt, DE;
Karen Lynn Claire-Zimmet, Kronberg/Taunus, DE;
Uwe Jungnickel, Königstein/Taunus, DE;
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
A filament for an oral care implement has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, the projections and channels are arranged in an alternating manner. The cross-sectional area has an outer diameter, and each channel has a concave curvature formed by neighboring and converging projections. The concave curvature has a radius which is within a range from about 0.015 mm to about 0.12 mm, and the ratio of the outer diameter to the radius is within a range from about 2.5 to about 12.