Compressible printing blanket and method of making same
CA 2123484 C · Owner: Byers, Joseph L. · Inventors: Byers, Joseph L.; Flint, W. Toriran; Kerr, Richard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-ply laminated compressible printing blanket (10) for use in offset printing comprising in order a first compressible, fabric ply (12), a compressible elastomeric layer (24) at least two , additional fabric plys (32 34) situated above the compressible, elastomeric layer an elastomeric surface (44) and an elastomeric printing face (46) deposited by a solventless process and having a surface profile adapted for reducing dot gain while enhancing the releasability of the printed matter. At least the lowermost fabric ply (12) incorporates a protective coating to prevent wicking of inks, water and/or solvents through the blanket which might otherwise lead to swelling and delamination …
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 November 13, 1992 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.