Expired Canadian patentCanada
Protective surface modification system and application to substrates
CA 2608968 C · Owner: E.I. Dupont De Nemours And Company · Inventors: Weberg, Rolf Thomas; Zhu, Shitong; Simmons, Lawrence J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A protective surface modification system employs two separate formulations to enhance visual appearance and in many instances provide abrasion resistance on a surface such as a countertop.
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 May 12, 2006 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2026.
- 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.
FiledMay 12, 2006
GrantedJuly 16, 2013
Term endedMay 12, 2026
Patent numberCA 2608968 C
Classification (IPC)C09D201/02 +2 more
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.