Composite suitable for use in electrochemical cells
CA 2305218 A1 · Owner: Bauer, Stephan · Inventors: Bronstert, Bernd; Bauer, Stephan; Stephan, Oskar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite comprises Aa) at least one first layer which comprises a mixture Ia, comprising a mix IIa consisting of a) from 1 to 95 % by weight of a solid III, preferably a basic solid III, having a primary particle size of from 5 nm to 20 µm and b) from 5 to 99 % by weight of a polymeric composition IV obtainable by polymerization of b1) from 5 to 100 % by weight based on the , composition IV, of a condensation product V of .alpha.) at least one compound VI which is able to react with a carboxylic acid or a sulfonic acid or a derivative or a mixture of two or more thereof and .beta.) at least 1 mol per , mol of the compound VI of a carboxylic acid or sulfonic acid VII which contains …
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 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 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.