Dispenser-container, and a process for manufacturing the same and an apparatus therefor
CA 2002538 C · Owner: Nakamura, Kenji · Inventors: Nakamura, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser-container comprises a container body provided with two containing spaces, containing wet contents and dry contents, respectively. The container body is a bag constituted by a first flexible sheet made of a liquid impervious material and a second flexible sheet made of a liquid impervious material. The first sheet constitutes a bag of a pillow type, longitudinal edges of the first sheet overlap each other and are at most slightly sealed with each other in such an extent that they can be manually separated to form an opening for dispensing the dry contents. The second sheet is fixed to the first sheet at entire peripheries thereof and is located outside or inside the pillow type …
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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, 1989 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2011.
- 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.