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CA 2309577 A1 · Owner: Gordon, Margot · Inventors: Gordon, Margot
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-level educational game apparatus and method for teaching letter recognition and for developing the motor skills necessary to print and write the, different characters of the alphabet. The educational game includes: 1) Four decks of 26 cards displaying the printed or written upper or lower, case letters of the alphabet. 2) Twelve different levels of game boards (to be distributed as single sheets or pads of sheets) to the different players. Each of these game boards has several rows and columns and the spaces within these rows and columns will each contain a character of the alphabet (written or printed) in one of the following formats:, a) the solid outline of the alphabet …
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 May 19, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2022.
- 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.