Multilayer tubular film based on polyamide
CA 2356590 A1 · Owner: Savic, Zoran · Inventors: Savic, Zoran
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multilayer tubular film based on polyamide comprising - an outer polymer layer based on aliphatic or partially aromatic polyamides or, copolyamides or blends thereof, up to 30% by weight of which based on the, outer layer, can be replaced by other polymers - a middle polyamide layer based on, - ethylene-C1-8-alkyl acrylate copolymers and - ethylene-maleic anhydride copolymers and/or ethylene-C1-8-alkyl acrylatemaleic anhydride copolymers, up to 20% by weight of which based on the middle layer, can be replaced by other polymers, - an inner polymer layer based on 40 to 100% by weight based on the inner, layer, of aliphatic or partially aromatic polyamides or copolyamides or blends thereof, 0 …
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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 September 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.