Vacuum sealer for a bag
CA 2399726 A1 · Owner: Singer, Alec · Inventors: Singer, Alec
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum sealer is disclosed which makes use of a flexible flap (24.2) secured along one of its edges to a base plate (12.2). The base plate (12.2) on which the bag (B) to be evacuated and sealed is placed has a vacuum port (16.2) in it so that air can be sucked out from between the base plate (12.2) and flap (24.2). A groove (36.2) is provided in the base plate (12.2). This assists in keeping the bag mouth from being sucked shut before evacuation is complete. An anvil (26.2) and a sealer bar (14.2) form a weld across the bag adjacent its open mouth after evacuation.
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 February 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2023.
- 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.