Resealable package having zipper closure with tamper evident seal, including a slider device having a seal cutting mechanism
CA 2313562 A1 · Owner: Buchman, James E. · Inventors: Buchman, James E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible package includes a recloseable zipper along the mouth of the package for selective opening and closing of the mouth. The zipper includes first, and second closure profiles, which are configured and constructed to selectively, interlock. A tamper evident seal is provided attached to both the first and , second closure members to indicate whether or not the seal on the package has been damaged. A slider device is configured and constructed to facilitate the mating, (closing) and unmating (opening) of the zipper and to open the tamper evident , seal, to provide access to the package interior.
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 July 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2022.
- 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.