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:
Jul. 27, 2021
Filed:
Apr. 09, 2018
Applicant:
Societe Bic, Clichy, FR;
Inventors:
Julien Gouerec, Boulogne-sur-Mer, FR;
Frédéric Claptien, Samer, FR;
Philippe Lefebvre, Wimereux, FR;
Christelle Debrauwer, Saint-Germain sur Morin, FR;
Assignee:
SOCIETE BIC, Clichy, FR;
Primary Examiner:
Int. Cl.
CPC ...
C09D 13/00 (2006.01); B43K 19/02 (2006.01); B43K 29/02 (2006.01); B43K 19/18 (2006.01); C08K 3/04 (2006.01); C08K 7/22 (2006.01);
U.S. Cl.
CPC ...
C09D 13/00 (2013.01); B43K 19/02 (2013.01); B43K 29/02 (2013.01);
Abstract
A pencil lead and a pencil containing the pencil lead wherein the pencil lead is polymer-based, extrudable, non-expanded, non-calcined and comprises graphite, of which 25% to 100% by weight or 50% to 100% by weight of the graphite, in relation to the total weight of the graphite, is expanded graphite.