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:
Aug. 15, 1978
Filed:
Nov. 29, 1976
Applicant:
Inventor:
Osamu Torii, Kyoto, JP;
Assignee:
Ancos Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B43K / ; B43K / ;
U.S. Cl.
CPC ...
401 67 ;
Abstract
A mechanical pencil having a mouth piece 5 extendable and retractable in and out of the end portion 3 of a main body 1, and a tip sleeve 14 extendable and retractable in and out of the end portion of the mouth piece 5. The mouth piece is extendable or retractable by fully depressing a push cap 2, while the lead may be inched forward by partially depressing the push cap. The tip sleeve protects the lead, and is designed to automatically move inwardly in response to writing pressure, to thereby always expose the end of the lead for writing.