Venetian blind bottom rail locking means
CA 1103575 A · Owner: Hunter Douglas Canada Ltd. · Inventors: Hennequin, Petrus J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a locking device for a raisable or liftable ventian blind in which the bottom rail of the venetian blind includes an end piece extending into and guided by the side housing of the blind and in which a flexible lifting member engages the end piece of the bottom rail to raise and lower the same. A spring urged pivoted latch is provided within the lower portion of the housing which automatically engages over the end piece of the bottom rail when it is in the lowered position and the tension in the lifting member is relaxed. Thus the blind is locked in the down position. When tension is applied to the lifting member to lift the blind, the lifting member moves the latch …
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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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
- 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.