Sealed flexible cartridge
CA 2450701 A1 · Owner: Yoakim, Alfred · Inventors: Masek, Petr; Yoakim, Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a sealed flexible cartridge (1) designed to , be extracted under pressure containing a substance for the preparation of a beverage, consisting of a first (3) and a second sheet (4) of circular oval , or polygonal shape which leave between them a space for the substance (2) and are welded together around their periphery (5) the first sheet (3) being made , of a material chosen from filter paper a non-woven and a semi-rigid material and the second sheet (4) being made of a material chosen from filter paper a , non-woven and a composite, in which the first sheet is such that it allows water at atmospheric pressure to pass through it or by piercing with a …
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 May 7, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2024.
- 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.