Twin-nibbed ball-point pen

- Tokai Corporation

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Description

FIG. 1 is a top, left front perspective view of a twin-nibbed ball-point pen showing my new design in an exploded condition;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D103570 March 1937 Hauton
D114530 May 1939 Deli et al.
D151233 October 1948 Goessling
D155285 September 1949 Green et al.
D166161 March 1952 Hanle
D169307 April 1953 Ferber
D206735 January 1967 Levy
D284676 July 15, 1986 Malm
D306316 February 27, 1990 Shintani
D310542 September 11, 1990 Regnault
D318688 July 30, 1991 Regnault
Patent History
Patent number: D328917
Type: Grant
Filed: Apr 5, 1990
Date of Patent: Aug 25, 1992
Assignee: Tokai Corporation (Yokohama)
Inventors: Tsutomu Shike (Yokohama), Isao Inoue (Yokohama)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Martha Thompson
Law Firm: Nikaido, Marmelstein, Murray & Oram
Application Number: 7/505,946