Adjustable blind assembly
CA 2256127 C · Owner: Willis, James L. · Inventors: Deblock, David A.; Pearsons, Errol S.; Willis, James L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A blind assembly having a frame entrapping a set of blinds. The frame has an integral track upon which tilt and height control mechanisms are slidably mounted. A height, control mechanism is slidably mounted on a vertical portion of the track and , the blinds are raised, and lowered by movement of this mechanism. The mechanism is connected to a lift cord retained, within the track and hidden from the user's view. This mechanism further includes a spring lock, to engage the track and lock the mechanism and thus the blinds, in a , stationary position. A tilt control mechanism is slidably mounted on a horizontal portion of the track and the blinds are, opened and closed by movement of this …
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 December 23, 1998 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2020.
- 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.