Eyeglass with auxiliary lenses
CA 2514422 C · Owner: Aspex Group Inc. · Inventors: Ifergan, Thierry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Eyeglasses comprise a primary frame and an auxiliary frame detachably secured to the primary frame by interaction of magnetic members on the frames. The frames and magnetic members are configured to maintain the frames in a first orientation in which the auxiliary frame overlies the primary frame and a second orientation in which the auxiliary frame is disposed above and away from the optical axis of lenses carried in the primary frame.
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 March 24, 2003 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2025.
- 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.