Bag pack
CA 2078709 A1 · Owner: Schindler, Hans · Inventors: Christel, Andreas; Schindler, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bag pack for contents which can be warmed by microwave treatment, comprising a jacket part and optionally a base part, of flexible plastic film where, the front and back of the jacket part and the base part optionally present are firmly joined to one another by sealed seams, the jacket part is formed from a plastic film which contains a peel layer on the inside and the, bag pack has, in the region of the upper limit of the jacket part, a removal opening which is closed by a bag top seam, and the bag has, in the region of the upper limit, an automatic excess pressure release system.
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 September 21, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2014.
- 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.