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. 10, 2024
Filed:
Jul. 15, 2021
Mitsubishi Pencil Company, Limited, Shinagawa-ku, JP;
Toru Nakajima, Shinagawa-ku, JP;
MITSUBISHI PENCIL COMPANY, LIMITED, Shinagawa-ku, JP;
Abstract
To provide a clicking type writing instrument capable of reliably suppressing volatilization of ink from the pen tip at least before the start of use. The clicking type writing instrument A has a refillprovided in a barrel cylinder; a pen tipconfigured to discharge ink from an ink storage memberaccommodated in the refillby capillary action and to be allowed to be projected from and retracted into a front end of the barrel cylinderby means of a clicking mechanismprovided in the barrel cylinder; and at least a seal member, arranged around an outer periphery of the pen tipnear a front end side of the pen tip, and formed with a through-holein a center of the seal member, through which the pen tipcan slidably move back and forth when the pen tipis housed inside the barrel cylinder