Flexible laminate structures having enclosed discrete regions of a material
CA 2431781 A1 · Owner: Borders, Richard A. · Inventors: Griffiths, Jennifer A.; Fish, Jeffrey E.; Borders, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible laminate structure that is formed from a first substrate a second , substrate, and discrete regions of a functional material sandwiched therebetween is provided. In particular the first and second substrates , contain thermoplastic polymers that are fused together at certain portions such that fused portions and unfused portions are formed. The unfused portions form pockets that contain the functional material and are relatively small in size. In some embodiments, for example the pockets have an approximate width to height ratio of less than about 10.
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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 December 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.