Contact lens case
CA 2542425 C · Owner: Novartis Ag · Inventors: Mackay, Spencer; Muenzer, Kim; Goldblatt, Lynn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A contact lens case including a body or base portion with a pair of lensreceiving wells recessed therein, a cap or cover closable to form a substantially liquid-impermeable seal around the wells and a latch or closure , assembly engageable to secure the cover in its closed position. A compressible gasket around the wells assists in forming the seal with the cover. The wells include a primary bowl portion with a tapered secondary portion extending therefrom to assist in lens removal.
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 October 21, 2004 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2024.
- 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.
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.