Twin-nibbed marking pen
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Description
FIG. 1 is a perspective view of a twin-nibbed marking pen showing my new design;
FIG. 2 is a rear elevational view;
FIG. 3 is a front elevational view;
FIG. 4 is a right side elevational view, the left side being a mirror image thereof;
FIG. 5 is a top plan view;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view of my design with the cap members removed for convenience of illustration;
FIG. 8 is a front elevational view of FIG. 7;
FIG. 9 is a top plan view of FIG. 7; and
FIG. 10 is a bottom plan view of FIG. 7.
Referenced Cited
U.S. Patent Documents
Other references
D279992 | August 6, 1985 | Gribb |
D295537 | May 3, 1988 | Davidson et al. |
D295878 | May 24, 1988 | Lovell |
D300640 | April 11, 1989 | Colletta 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. |
- Visual Systems Co. Inc., Catalog .COPYRGT.1985 see page 125 top left, Berol double ended marker, Desk copy.
Patent History
Patent number: D313621
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Jan 8, 1991
Assignee: Mitsubishi Pencil Co., Ltd. (Tokyo)
Inventor: Katsuhiko Yazaki (Urawa)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Martha Thompson
Application Number: 7/134,523
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Jan 8, 1991
Assignee: Mitsubishi Pencil Co., Ltd. (Tokyo)
Inventor: Katsuhiko Yazaki (Urawa)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Martha Thompson
Application Number: 7/134,523
Classifications