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:
Sep. 26, 2023
Filed:
Aug. 27, 2021
Applicant:
Société Bic, Clichy, FR;
Inventor:
Laurent Beaucher, Clichy, FR;
Assignee:
SOCIÉTÉ BIC, Clichy, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K 29/02 (2006.01); B43K 7/00 (2006.01); B43K 8/00 (2006.01); B43K 8/02 (2006.01);
U.S. Cl.
CPC ...
B43K 29/02 (2013.01); B43K 7/005 (2013.01); B43K 8/003 (2013.01); B43K 8/024 (2013.01);
Abstract
A thermochromic ink writing instrument comprising a body extending along an axis, the body having a first end and a second end opposed to the first end along the axis, the first end being provided with a writing tip and with an eraser, wherein the writing tip is fed with thermochromic ink, wherein the writing tip is fixed with regard to the body and the eraser is movable along the axis with regard to the body, and the thermochromic ink writing instrument further comprising a helical-cam propelling mechanism configured to move the eraser along the axis between a retracted position and a protruding position.