Brass sinkers
CA 2196706 A1 · Owner: Bruns, Jason L. · Inventors: Bruns, Jason L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Brass sinkers consist of, as the name implies brass sinkers for, attachment to a fishing line. This line of sinkers is designed to replace conventional lead sinkers that are dangerous to wildlife and in many cases fatal if long exposure or large amounts of lead are present in this, case, in the water. Humans are also susceptible to lead poisoning that can lead to disorientation, brain damage and even death.
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 February 4, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 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.