Antimicrobial contact lens case
CA 2467699 A1 · Owner: Tapale, Mayuresh Shashikant · Inventors: Lindley, Karen Frances; Tapale, Mayuresh Shashikant; Gilliard, Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A contact lens case having antimicrobial characteristics composed of a polymeric material having a plurality of amorphous zones. An antimicrobial agent is incorporated into said amorphous zones of the polymeric material of said body. The antimicrobial agent exhibits controlled migration through the amorphous zones of the polymeric material of said body. In this manner the , surface of the lens case is consistently saturated with an antimicrobial agent.
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 December 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2024.
- 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.