Filtering device, filtering element and method for producing said filtering element for making boiled beverages
CA 2284526 A1 · Owner: Gliemroth, Frank · Inventors: Emmerich, Horst; Kleemann, Christof; Ziesch, Christian
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 filtering device for making boiled beverages comprising a filter holder (1), and a filtering element (28) consisting of filter paper. Said filtering element (28) has a receiving area (76) for filling with extraction products such as ground coffee or tea leaves. Said extraction products produce extracts when brought into contact with hot water with the result that a boiled beverage then flows out of the filtering element (28). During this process, the filtering element (28) is accommodated in said filter holder (1). The outer contour (29) of the holding area (76) of the filtering element (28) assumes an ellipsoidal shape. Said filtering element (28) is …
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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 March 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
- 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.