Game
CA 2436229 A1 · Owner: Toubkin, Walter, Milton · Inventors: Toubkin, Walter, Milton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An educational board game in which there is a board marked in a grid and cards marked with a description, drawing or phonetic spelling of a word on one side and the correct spelling on the other, each card having categories of questions in degrees of hardness, as a player gets the spelling right he moves up the board and, when he reaches a promotion level on the board he can move , to a harder category of question.
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 February 7, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2024.
- 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.