Packaging in sealed bags
CA 2039095 A1 · Owner: James, Robert C. · Inventors: James, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A package comprising a plastic bag containing product having a tear string for tearing the bag open giving access to the content of the bag with or without a resealable closure, which may then be opened for removal of part of the content and then closed to seal in the remainder. The bag is heat-sealed at its ends and the string extends at its ends into the end seals at one side thereof. The resealable closure comprises mating male and female strands which also estend into the end seals.
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 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2013.
- 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.