Expired Canadian patentCanada
A comfortable ophthalmic device and methods of its production
CA 2597672 C · Owner: Johnson & Johnson Vision Care, Inc. · Inventors: Hill, Gregory A.; Martin, W. Anthony; Aguilar, Helene
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to comfortable ophthalmic devices and methods of producing such devices.
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 10, 2006 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 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.
FiledFebruary 10, 2006
GrantedNovember 19, 2013
Term endedFebruary 10, 2026
Patent numberCA 2597672 C
Classification (IPC)B29D11/00 +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.