Contact lens treatment apparatus and method
CA 2398245 A1 · Owner: Isoclear, Inc. · Inventors: Pankow, Mark L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-contained apparatus for cleaning contact lens (27) comprising a deformable, non-abrasive material (60, 63) having an enzyme enriched layer (61, 64) for contact with the optical surfaces (27) of the lenses. While in contact with the optical surfaces, the contaminants on the lens (27) surfaces are enzymatically removed. Upon separation of the lens (27) and the deformable material (60, 63), substantially all of the enzymes are retained on the deformable material (60, 63), largely eliminating the need to perform additional operations to inactivate the enzymes or otherwise rid the lenses of residual enzymatic matter.
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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2023.
- 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.