Method of making a photopolymer sleeve blank having an integral cushion layer for flexographic printing
CA 2562872 C · Owner: Mclean, Michael E. · Inventors: Goss, Will; Kockentiedt, Michael; Mclean, Michael E.
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 photopolymer sleeve blank for use in flexographic printing is provided which includes providing a base sleeve applying a , cushion layer , over the base sleeve applying an optional barrier layer over the cushion layer, and , applying a photopolymer layer over the barrier or cushion layer. The method provides a , sleeve blank having an integral cushion layer and eliminates the need for a back exposure , step.
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 May 9, 2005 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.