Plural-nibbed ball-point pen

- Tokai Corporation

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Description

FIG. 1 is a front elevational view of a plural-nibbed ball-point pen showing our new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a right side elevational view with the bottom nib in an "in use" position; and,

FIG. 7 is a right side elevational view thereof with the top nib in an "in use" position and the bottom nib in a retracted position.

Referenced Cited
U.S. Patent Documents
D133540 August 1942 Kahn
D143508 January 1946 Reynolds
D155285 September 1949 Green et al.
D174249 March 1955 Daniels
D306316 February 27, 1990 Shintani
D306458 March 6, 1990 Lecce
D312478 November 27, 1990 Lecce
D328917 August 25, 1992 Shike et al.
2883968 April 1959 Vertiz
3288116 November 1966 Poritz
4266881 May 12, 1981 Rubens
Patent History
Patent number: D334589
Type: Grant
Filed: Sep 6, 1991
Date of Patent: Apr 6, 1993
Assignee: Tokai Corporation (Kanagawa)
Inventors: Tsutomu Shike (Shizuoka), Isao Inoue (Shizuoka), Kenji Yamazaki (Shizuoka)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Martha Thompson
Law Firm: Brumbaugh, Graves, Donohue & Raymond
Application Number: 7/756,125