Head rail-mounted mini-blind actuator for vertical blinds and pleated shades
CA 2204643 C · Owner: Harmonic Design, Inc. · Inventors: Domel, Douglas R.; Walker, Winston G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window blind actuator (400) has a, motor powered by dc batteries and is mounted in the head rail (404) of a vertical blind (406) and coupled to a rod element (416) for rotating the slats (410) of the blind (406). Alternatively a window blind actuator (500) is coupled to a rod (502) in the head rail (504) of a pleated or cellular shade (506) to raise or lower the shade (506).
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 13, 1995 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2017.
- 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.