Eyeglasses visor and case
CA 2549003 C · Owner: Lawrence, Richard · Inventors: Lawrence, Isabel Clare; Lawrence, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a eyeglass case and visor with a novel method of attachment to the limbs of a pair of eyeglasses so that the eyeglasses are , firmly connected to the visor at the forehead of the wearer of the eyeglasses in an attitude which keeps it from drooping into the vision range of the user. More particularly, the visor is formed of two plies of material the top ply , is crescent shaped and the bottom ply is crescent shaped with the corners removed to allow for a wide opening pocket and proper placement of attachment bands on the bottom of the top ply of material. The top and bottom plies of material are connected together along the convex edges of the top and bottom …
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 21, 2004 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 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.