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. 12, 2002
Filed:
Feb. 06, 2002
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Pilot, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K 7/08 ;
U.S. Cl.
CPC ...
B43K 7/08 ;
Abstract
An ink follower for a writing tool arranged in close contact with an ink surface of a terminal portion of an ink reservoir opposite to a writing tip portion comprises a swollen gel formed from an oil-absorbable resin, a base oil of polybutene, and an alkyl-modified silicone oil compatible with the polybutene. The ink follower exhibits improved impact resistance without causing insufficient ink following and oil separation.
Yoshii, Kazuhiro. (2002). Ink follower for writing tool (U.S. Patent No. 6478496). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6478496
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile