Sealing closures
CA 2405094 A1 · Owner: Velcro Industries B.V. · Inventors: Kingsford, Howard A.; Dandurand, Paul A.; Shepard, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reclosable closure (10) consists of two longitudinally continuous strips (12) and (14) which, when facially engaged are held together by hook and loop , fastening principles. The inner side of one strip (12) has two fields of hookengageable loops (16), separated by a female seal profile portion (20). The inner side of the other strip (14) has two fields of molded hook elements (18) arranged to engage the loops (16) to hold the closure (10) in its closed condition, and a central male seal profile portion (22) for engaging the female seal profile portion (20) to form a seal when the closure is closed. Another reclosable closure is held together by hook and loop fastening principles …
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 April 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.