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:
Mar. 27, 2012
Filed:
Oct. 31, 2008
Yojiro Sano, Yokohama, JP;
Yojiro Sano, Yokohama, JP;
Mitsubishi Pencil Co., Ltd., Tokyo, JP;
Abstract
A writing implement capable of eliminating troubles associated with the adoption of a grip member having an end surface inclined from a vertical surface perpendicular to a central axis of a shaft tube. The inclination angle α of a step-facing surfaceA of the grip memberis made smaller than the inclination angle β of an inclined step surfaceof the shaft tubeA gap G is partially formed between the step-facing surfaceA and the inclined step surfacewhen a compressive force is not applied to the grip memberWhen the grip memberis compressed, the whole of the step-facing surfaceA is further inclined and comes into contact with the inclined step surfaceAccordingly, even when the step-facing surfaceA of the grip memberis inclined for imparting excellent design to the writing implement, an acute-angled tip-end portion of the grip memberis prevented from moving along the inclined step surfaceand rising from the surface of the shaft tubethereby preventing the occurrence of the troubles.