Coating substrates
CA 2225027 A1 · Owner: Rohm And Haas Company · Inventors: Demasi, Anne Seton; Gebhard, Matthew Stewart; Lauer, Rosemarie Palmer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for coating a substrate, preferably a cellulosic substrate an aqueous, coating comprising a polymer having carbonyl functional moities may be tandem coated directly onto or beneath an UV cured coating. The method provides a low VOC system which offers good adhesion between the two coatings.
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 December 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.