System comprising a glazing element and a gas supply device
CA 2456111 C · Owner: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. · Inventors: Graf, Wolfgang; Rox, Rainer
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 system comprising a glazing element and a gas supply , device, whereby the glazing element has at least two substrates which enclose , a , space, and at least one gas of a defined composition located inside the space. A , coating whose physical properties, in particular optical and/or electrical , properties which can be altered according to the composition of the gas is , at , least applied to one of the surfaces of a substrate said surfaces facing the , space. The gas supply device has at least one electrolysis device that has a working electrode, a counter electrode and at least one electrolyte for producing , gas. The glazing element and the gas supply …
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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 August 19, 2002 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2024.
- 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
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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.