Key light
CA 2196342 A1 · Owner: Punko, Wally Nick · Inventors: Punko, Wally Nick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This product is a simple lighting device that attaches to most keys. The components of the lighting circuit are embedded into the body of the product. As a result this device is designed as a waterproof and inexpensive disposable product. Actuation of the light occurs as a result of squeezing both sides of key together. The user now has illumination to aid inserting the key into its matching lock.
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 January 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2019.
- 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.