Sealed cartridge for the preparation of a beverage and a process and apparatus for its preparation
CA 2046558 A1 · Owner: Societe Des Produits Nestle S.A. · Inventors: Fond, Olivier; Masek, Petr
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sealed cartridge for the preparation of a beverage and a process and apparatus for its production The invention relates to a sealed cartridge (1) which is designed to be extracted under pressure and which contains a substance for the preparation of a beverage (5) comprising a cup (2) with a lateral wall substantially frustoconical in shape, an upper face larger in diameter than the lower face (7) and, on the lower face (7) a, filter (4), the lower face being separate from the filter, flat and of even thickness and the upper face comprising a flange (6) with an annular rim to which a lid (3) is welded. Fig. 1
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 July 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 2013.
- 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.