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:
Nov. 11, 2003
Filed:
Oct. 03, 2002
José Duez, St. Martin Boulogne, FR;
Vincent Bedhome, Desvres, FR;
Conte, Boulogne sur Mer Cedex, FR;
Abstract
The invention concerns a writing implement ( ) comprising ink ( ) in a fibrous or non-fibrous reservoir, a retarding agent soluble or dispersible in the ink and a nib ( ) for transferring ink ( ) from the reservoir to the writing medium and a method for making such a nib ( ). The invention is characterised in that a retarding agent is included in the writing nib ( ) and is adapted to be carried by the ink ( ) when it is transferred into said nib ( ). The inventive method consists in impregnating an already machined writing nib with a solution containing a specific amount of a retarding agent, drying the impregnated writing nib, without stirring, by heating at a temperature less than 60° C.