Length adjustable venetian type blind having clamps
CA 2276268 C · Owner: Judkins, Ren · Inventors: Judkins, Ren
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Clamps are provided for shortening a venetian type blind to fit windows of different lengths. The clamp has two portions connected by hinge. The two portions are fastened together on a lift cord and ladder below the slat at the desired shortened length. At least two clamps are used to shorten the blind. After the clamps are applied the blind is shortened by removing that portion of the blind below the clamps. This can be done by releasing each lift cord from the bottomrail and pulling the lift cord from the bottomrail through the slats to be removed. The excess slats are removed. Then the ladders are detached from the bottomrail shortened and reattached to the bottomrail. The lift cords are …
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 25, 1999 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.