Composite flexible goggle with rigid lens support
CA 2003347 C · Owner: Watkins, Willis T. · Inventors: Watkins, Willis T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Eye protective goggles for protecting a wearer's eyes from particulate matter in the air includes a goggles body and a lens support fixedly secured to the body. The lens support includes a circumferential lens fitting groove of predetermined shape and is constructed of a material that is hard and rigid relative to the goggles body. An eye protective lens including a circumferential edge having a shape corresponding to the predetermined shape of the fitting groove is removably attached to the lens support by snap-fit receipt of the circumferential edge of the lens in the fitting groove. A method of constructing eye protective goggles is also disclosed and includes the steps of aligning a …
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 20, 1989 and granted December 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2011.
- 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.