Method of applying an anti-freeze film to a transparent substrate
CA 2595977 C · Owner: Lonchampt, Gilles · Inventors: Demars, Yves; Grussaute-Nghiem, Helene; Lonchampt, Gilles
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 method of adhering a flexible film to a substrate in which a sufficient quantity of a liquid is disposed between the film and the substrate such that no bubbles are trapped therebetween once the film has been applied to the substrate with the aid of a scraper said method being characterised in that the liquid does not freeze at a substrate temperature of less than 0 °C; the mutually-adhered substrate and flexible film which is characterised by the continued absence of frost in the event of the substrate and film being moved into an atmosphere in which the temperature thereof is less than 0 °C from an atmosphere having a temperature that is at least equal to 0 °C …
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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 January 30, 2006 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2026.
- 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.