Safety eyeglasses and corrective lens carrier therefor
CA 2117442 C · Owner: Canavan, Richard W. · Inventors: Canavan, Richard W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety eyeglass assembly includes a carrier integrally molded from a transparent plastic material and including a front panel portion having a pair of lens apertures therein and left and right top bottom and side, shield extending rearwardly from left and right side portions of the front panel portion. The assembly further includes a frame detachably and adjustably secured to the carrier and including left and right temple frame portions and a cross bar portion extending between the temple frame portions in front of the carrier.
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 July 7, 1994 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2016.
- 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.