Operating system for a shutter type covering for architectural openings
CA 2518031 C · Owner: Hunter Douglas Inc. · Inventors: Downey, Joseph M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shutter includes top and bottom frames as well as interconnecting perpendicular styles between which a plurality of louvers are pivotally mounted. Each louver has a first tap in its opposite ends for receipt of a pivot pin and a second tap in at least one end for receipt of a tilt pin for pivotal interconnection with a tilt bar. The tilt pins are positioned adjacent to one longitudinal edge of a louver whereby the tilt bar can be easily fastened thereto and positioned adjacent a longitudinal end of the louvers.
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 September 2, 2005 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.