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. 16, 1977
Filed:
Sep. 17, 1974
Applicant:
Inventors:
Sadao Hasebe, Tokyo, JA;
Hiromitsu Ono, Ichikawa, JA;
Minoru Murata, Yokohama, JA;
Yuji Harada, Tokyo, JA;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JA;
K.K. Chiyoda Gurabiya Insatsusha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
197102 ; 178110 ;
Abstract
A key top comprises a key top base comprising a side portion and a top portion having a specified color, a colored portion provided at a part of the top portion and having a color different from the specified color of the top portion, and, a protective layer composed of a transparent material having an abrasion resistance and covering at least the colored portion.