Toy building block
CA 1265676 C · Owner: Clavet, Alain · Inventors: Clavet, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toy building block includes a rectangular parallelpipedic body with a pair of dovetail-shaped slots extending transversely across the centre of four adjacent sides thereof and a lug, extending outwardly from the centre of the slots on two of the sides, the portion of the lug projecting outwardly beyond the plane of the side of the block also having a dovetail cross section for sliding engagement with the slots, and the central portion of each lug being bifurcated, the sides of the central portion flexing inwardly to permit insertion of the lug into a slot and bearing against the sides of the slot to releasably lock the lug in the slot.
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
- Granted February 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 2007.
- 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.