Multi-sided colored mirror image block set
CA 2213307 A1 · Owner: Nizza, Robert · Inventors: Nizza, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An educational set of amusement blocks includes a set of a plurality of pairs of mirror image multi-sided sided blocks. In each set, each block preferably includes seven sides including, various geometric shapes for each side. The blocks are stable and can stand independently on five of the seven sides. The seven sides are distributed over the three dimensional surface of each block, so as to form structures having a wide base for weight distribution. Each block includes a cantilevered peak to, effect stability, and thereby enable the blocks to stand on five of its seven sides. Because of their stability the blocks do, not topple so easily, and therefore can be used for building intricate …
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 August 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2019.
- 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.