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. 23, 1980
Filed:
Jul. 06, 1978
Applicant:
Inventors:
Kenji Matsumoto, Tokyo, JP;
Gouji Sakaoka, Kawasaki, JP;
Assignee:
Pentel Kabushiki Kaisha, Nihonbashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43K / ;
U.S. Cl.
CPC ...
401 85 ; 401 67 ; 401 86 ; 401 87 ; 401 94 ;
Abstract
A mechanical pencil includes a casing, a chuck for holding a lead, a lead passage connected with the chuck, a lead cartridge and a push button for advancing the lead. A cylindrical body is connected to the lead passage. The cylindrical body and the lead cartridge have guides so that the both may be snuggly and accurately engaged with each other in accordance with the diameter of leads which are used in the pencil.
Matsumoto, Kenji. (1980). Mechanical pencil having guides to match guides on a refill cartridge (U.S. Patent No. 4240759). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4240759
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile