Knock-down shelf unit
CA 2075320 C · Owner: Nilsson, Finn · Inventors: Nilsson, Finn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A knock-down shelving unit comprising a plurality of vertical posts, a plurality of horizontal members and a locking attachment for connecting the horizontal members to the vertical posts, the vertical pasts being provided with a plurality of key hole shaped apertures oriented at an acute angle to vertical, and a head and stem portion adapted to extend from each of the horizontal members for interconnection with the key hole shaped apertures such that the vertical edge of each horizontal member is force fit connected to a respective one of the vertical posts.
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 5, 1992 and granted October 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2014.
- 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.