Expired Canadian patentCanada
Substrates containing adhesion promoting additives and articles prepared therewith
CA 2554532 C · Owner: Invista North America S.A.R.L. · Inventors: Harwell, Michael G.; He, Qiwei; Iqbal, Tahir
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Adhesion of an adhesive to a substrate can be improved by incorporating into the substrate an adhesion-enhancing amount of an adhesion promoter.
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 January 27, 2005 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 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.
FiledJanuary 27, 2005
GrantedFebruary 12, 2013
Term endedJanuary 27, 2025
Patent numberCA 2554532 C
Classification (IPC)C08J5/12
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.