Molded article adapted to be adhered to a substrate and method for making same
CA 2014335 C · Owner: Janssen, Jeffrey R. · Inventors: Hill, Barbara A.; Janssen, Jeffrey R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Three dimensional polyurethane article adapted to be adhered to a substrate and method for making same. Article comprises cured polyurethane body tie layer, containing amine functionalities and adhesive body at, least top stratum of which contains acid functionalities. Method comprises assembling curable composition, tie layer, and adhesive body and curing as integral assembly.
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 April 11, 1990 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2012.
- 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.