Glass-darkening system which is suitable for windows and similar
CA 2585331 C · Owner: Matoses Vercher, Daniel · Inventors: Matoses Vercher, Daniel; Munoz Munoz, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a glass-darkening system comprising a fluid-pumping device which can fill and empty an internal chamber between two transparent glass panes or pane segments belonging to a glazed structure. According to the invention, when the chamber fills with fluid the glazed structure darkens , and, when the chamber empties the structure becomes transparent once again.
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 October 24, 2005 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 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.