Paper coating process
CA 2197587 A1 · Owner: Manistique Papers, Inc. · Inventors: Christensen, Leif
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for depositing various coating materials on a traveling web by passing the coating through a dispersing medium. The web of material in traveling through processing or handling machinery may be effectively and desirably spray coated in-line by equipping the same with the apparatus of the present invention. The coated material is sprayed onto the inside surface of a permeable conveyor and transferred through to the web.
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 February 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2019.
- 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.