Apparatus for sterilizing contact lenses
CA 2058759 C · Owner: Ciba Vision Corporation · Inventors: Cerola, Joseph J.; Perlaky, Steven C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus is provided for use in the sterilization of contact lenses or the like, wherein lenses are disposed within a sterilizing solution (32) contained within a reaction vessel (22) which sterilizing solu-, tion (32) is capable of being decomposed through contact with a catalytic agent (62). The apparatus comprises a reaction vessel (22) capable of containing a sterilizing solution (32) and comprising a container portion (22), a cover (30) and structure (40) for supporting an article in contact with sterilizing solution (32) in the container (22). Further structure is provided for mounting a catalytic agent (62) on the supporting means (40) such that the catalytic agent (62) is removable …
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 June 7, 1990 and granted April 29, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 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.