US D1,028,101 S
Multiple level chess board system
Erik K. Andersen, Munster, IN (US)
Filed by Erik K. Andersen, Munster, IN (US)
Filed on Dec. 22, 2021, as Appl. No. 29/820,587.
Term of patent 15 Years
LOC (14) Cl. 21 - 01
U.S. Cl. D21—348  [D21/336]
OG exemplary drawing
 
The ornamental design for a multiple level chess board system, as shown and described.