Filter paper insert for producing filtered coffee and method for production of such a filter paper insert
CA 2361449 A1 · Owner: Heusel, Erik · Inventors: Rohde, Florian; Heusel, Erik; Dolfel, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to be able to change the taste of the filtered coffee produced the , filter paper insert (1) is, provided with a coating (3) that consists of a flavoring material constituting a flavor carrier, a, carrier material, and a solvent. Such a coating (3) can be sprayed or pressed onto the filter paper of the filter paper insert (1), or, applied otherwise to the latter and after this application dries relatively quickly. In spite of that, the flavoring materials are integrated into the coating (3) and are again activated when the hot, brewing water passes through the filter paper insert (1) in order to produce a filtered coffee.
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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 November 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2023.
- 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.