Suspension hook
CA 2054948 A1 · Owner: Kuiper, Karel · Inventors: Kuiper, Karel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Suspension hook, in particularly for suspending sectional bars from an existing ceiling, said bars together forming a grid for supporting ceiling panels. Said bars each have an upper tubular part. The suspension hook consists of a connecting portion and of a hook portion said hook por-, tion being intended to be inserted in said tubular part of the concerned sectional bar via a pair of apertures in the upper wall of said tubular part. The hook portion has a flat bearing surface which extends at about aright angle from the strip shaped connecting portion. The central region of said bearing surface is provided with a Vshaped downwardly projecting nose, the height of which corresponds with the …
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 November 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2013.
- 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.