Lighted reading glasses
CA 2855470 C · Owner: Waters, Michael · Inventors: Waters, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lighted reading glasses are provided to enable clear reading of normal sized text to occur when the reading material is held at usual distances from the reader in poorly lit locations. The lighted glasses have high intensity lights, such as in the form of LEDs, housed in light modules from which a blinder extends to minimize glare from stray light reflected or refracted by the lens into a wearer's eye. The blinder extension is configured such that it extends outwards in the direction of the LED and is optimally sized such that the blinder extension blocks the incident rays of light without distracting the wearer or interfering with the light projected for illuminating a reading …
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 November 7, 2002 and granted December 5, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 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.