Nylon copolymer medical film
CA 2063868 C · Owner: Mueller, Walter Berndt · Inventors: Mueller, Walter Berndt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A film suitable for making medical solution pouches generally includes a first layer of a propylene homopolymer or copolymer blended with an elastomer; a polymeric adhesive layer; and an outer layer of a polyamide. Nylon 12 and copolymers thereof nylon 11 and copolymers there-, of, nylon 66 nylon 610, and nylon 66/610 copolymer are especially preferred polyamides. One or more anterior layers of at least one polyolefin such as an ethylene vinyl acetate copolymer ethylene methyl acrylate, copolymer, very low density polyethylene ionomer, or blends of these, materials can also be included in the structure.
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 24, 1992 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2014.
- 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.