Card and marble game
CA 2282212 C · Owner: Williams, Steven G. · Inventors: Williams, Steven G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A kit for playing a construction/deconstruction game is described and includes a plurality of flat planar cards and a plurality of v-shaped articulated cards from which a deconstructable structure can be erected. A plurality of spherical objects such as marbles, adapted to be fired against the structure is also provided. A ball retaining wall adapted to at least partially encircle the structure may also be provided
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 23, 1999 and granted November 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2021.
- 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.