Colored multi-layered polymer coated articles and method of making same
CA 2470186 A1 · Owner: Kimberly-Clark Worldwide, Inc. · Inventors: Vistins, Maris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a colored, multi-layered polymer coated film-based article includes the steps of providing a former in the shape of an article; dipping the former in a first polymeric solution in order to coat the former with a polymeric film of the first polymeric solution; withdrawing the former from the first polymeric solution and allowing the coated former to dry; dipping the former in a second polymeric solution in order to again coat the previously coated former, wherein the second polymeric solution produces a coating of observable contrast to the first coating; withdrawing the former from the second polymeric solution and allowing the second coating to dry thereby …
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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 July 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2024.
- 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.