Amusement device of shifting block type
CA 2290910 C · Owner: Nesis, Dov · Inventors: Nesis, Dov
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hand-held puzzle comprising a planar square array of mirror surface tiles , (2) confined for sequential planar movement via a ninth vacant, tile size , space or recess (3) to alter the positions of individual blocks in the array. A humanoid character (4) molded in one piece from elastomeric material has hands (5) and feet (6) anchored to preselected respective corner tiles (2) by adhesive so that the limbs (7, 8) and torso (9) can be twisted intertwined , and contorted into stable different configurations by such sequential movement of respective tiles. The character's body is marked with black and white stripes which extend in straight manner along the limbs and torso when the body …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 8, 1998 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.