Rapid-action agent for preparing cold and hot beverages from drinking water
CA 2482140 A1 · Owner: Pieschel, Friedemann · Inventors: Pieschel, Friedemann; Koerber, Helmut; Knieling, Michael
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 rapid-action agent for preparing cold and hot beverages from drinking water, in particular coffee or tea. Taking into consideration the disadvantages of known prior art the aim of the invention , is to provide a rapid-action agent for preparing cold and hot beverages from drinking water, said agent being easy to use having a uniform, consistent , action, eliminating the risk of microbial formation and noticeably improving the taste of the beverage after a relatively short treatment time. To achieve this, the inventive agent consists of cellulose fibres which are modified by , a chemical reaction forming phosphate ester groups and which have an ionexchange …
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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 April 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2025.
- 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.