Twin-nibbed writing instrument

Description

FIG. 1 is a left front perspective view of a twin-nibbed writing instrument showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is a left front perspective view with one of the cap members in a stored position.

Referenced Cited
U.S. Patent Documents
D248661 July 25, 1978 Kanawyer
D289302 April 14, 1987 Powell
D306316 February 27, 1990 Shintani
D312658 December 4, 1990 Sumino
D312659 December 4, 1990 Oka
800587 September 1905 Merriam
1463983 August 1923 Visitacion
1846613 February 1932 Rosenthal
3079895 March 1963 Gordon
4702633 October 27, 1987 Schmidt
4902151 February 20, 1990 Asano et al.
Patent History
Patent number: D321905
Type: Grant
Filed: May 18, 1989
Date of Patent: Nov 26, 1991
Inventor: Charlie Tu (Taipei)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Application Number: 7/353,507