Control for a vertical blind
CA 2210194 C · Owner: All-Teck Blinds P.T.B. Inc. · Inventors: Pham, Viet; Cadorette, Mario; Laing, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical blind control includes a single control mechanism for traversing the vanes, i.e. opening or closing the blind and for rotating the vanes to change the amount of light admitted by the closed blind. The control mechanism includes a wand which is used, to slide and rotate a shaft carrying opposed bevel gears. One bevel gear is engageable with a mating gear system connected to a tilt rod for rotating the vanes. The other bevel gear is engageable with a drum carrying a cord for traversing the vanes to open or close the blind. The shaft is slidable within the mechanism so that only one of the bevel gears is engaged at any one time to effect the desired operation.
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 July 11, 1997 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2019.
- 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.