Hermetically sealable fresh-keeping container
CA 2132196 A1 · Owner: Schmidt, Herbert · Inventors: Kiener, Waldemar; Schmidt, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hermetically sealable fresh-keeping container for organic substances, in particular foodstuffs has a, dimensionally stable bottom part with a support surface for the goods to be kept fresh, an equally dimensionally stable top part removably laid on the bottom part forming a usable, space above the support surface and a pumping device for, pumping out the air contained in the usable space. In the area delimited by the top part, the usable space is delimited by an airproof foil the edge of which is hermetically and detachably linked to a wall that delimits the usable space. A suction opening for the air pumping device is arranged in said wall.
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 March 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2015.
- 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.