Twin-nibbed marking pen

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a twin-nibbed marking pen showing my new design.

FIG. 2 is a perspective view of the twin-nibbed marking pen with the cap members removed for convenience of illustration;

FIG. 3 is a front elevational view with respect to FIG. 1;

FIG. 4 is a left side elevational view with respect to FIG. 1;

FIG. 5 is a rear elevational view with respect to FIG. 1;

FIG. 6 is a top plan view with respect to FIG. 1;

FIG. 7 is a bottom plan view with respect to FIG. 1;

FIG. 8 is a front elevational view with respect to FIG. 2;

FIG. 9 is a right side elevational view with respect to FIG. 2;

FIG. 10 is a bottom plan view thereof with respect to FIG. 2;

FIG. 11 is a top plan view thereof with respect to FIG. 2.

Referenced Cited
U.S. Patent Documents
D279992 August 6, 1985 Gribb
D295537 May 3, 1988 Davidson et al.
D295878 May 24, 1988 Lovell
D300640 April 11, 1989 Coletta et al.
1495890 May 1924 Day
3684389 August 1972 Eron et al.
3765780 October 1973 Guu et al.
4509875 April 9, 1985 Shintani
4557618 December 10, 1985 Iwata et al.
Other references
  • Visual Systems Co. Inc. catalog .COPYRGT.1985, see p. 125, top left, Berol Double Ended Marker.
Patent History
Patent number: D306873
Type: Grant
Filed: May 11, 1987
Date of Patent: Mar 27, 1990
Assignee: Mitsubishi Pencil Co., Ltd. (Tokyo)
Inventor: Katsuhiko Yazaki (Urawa)
Primary Examiner: Carmen H. Vales-Lado
Assistant Examiner: Martha Thompson
Application Number: 7/49,441