Slider puzzle
CA 2127208 A1 · Owner: Hilchie, Robert · Inventors: Hilchie, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slider puzzle with a plurality of slide members is provided. Each slide member intersects with at least one other slide member at an intersection point and is moveable between two end positions or any number of positions in between. Each slide member is also provided with a gating means selectively located at each intersection point in accordance with a pre-determined sequence or sequences of moves. The gating means either allows or prohibits movement of an intersecting slide member relative to the gating means between the two end positions in whole or fractional increments. The object of the slider puzzle is to move all slide members in order that the puzzle is in a solved configuration.
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 30, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2016.
- 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.