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. 08, 2003
Filed:
Jun. 14, 2002
Applicant:
Inventors:
Kazuhiko Furukawa, Kanagawa, JP;
Yojiro Sano, Tokyo, JP;
Assignee:
Mitsubishi Pencil Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K 5/18 ;
U.S. Cl.
CPC ...
B43K 5/18 ;
Abstract
A collector type writing instrument including: a collector for temporarily storing ink therein upon a change in inter pressure, a sectioning portion for substantially separating its ink tank for storing ink, and a snorkel having a vent portion for establishing air communication between the front and rear spaces divided by the sectioning portion or an ink absorber for reducing the inner tank volume, wherein the snorkel or the cladding of the ink absorber is molded of the same material as the collector or the ink tank is or is subjected to the same wettability reforming treatment as the collector or the ink tank is.