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Patent
   D255910
Priority
Nov 17 1978
Filed
Nov 17 1978
Issued
Jul 15 1980
Expiry
Jul 15 1994
Inventors
Bergman, M…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
7
References
4
Maint.:
n/a
The ornamental design for a multi-level chessboard, substantially as shown and described.

FIG. 1 is a top plan view of a multi-level chessboard showing my original design;

FIG. 2 is a front elevational view thereof, the back, right side and left side views being a mirror image of this front view;

FIG. 3 is a bottom view of said multi-level chessboard.
INVENTORS:

Bergman, Michael D.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
5033751, Oct 31 1990 Pyramidal type quad level checkered gameboard and game
7749058, Mar 15 2007 Altova GmbH Recursive team-oriented chess-like game for entertainment and training
D311217, Dec 18 1987 Three-dimensional game board
D349304, Jun 03 1992 MARSOLAIS, ROBERT Tridimensional game board
D774597, Nov 20 2015 Marble game
D833532, Nov 09 2016 Three-dimensional alignment game board
D960247, Apr 11 2019 Electronic Gaming Solutions LLC Galleon ship game
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3884474,
23036,
234366,
GB667737,
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