Tube bird feeder
CA 2541910 C · Owner: Plc Patents And Trade Marks Inc. · Inventors: Cote, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bird feeder for deterring squirrels and other maurders the bird feeder having an inner feed container and an outer shroud the spring mechanism being mounted in a center structure which comprises an outer first member having a hollow interior portion with a second plunger member mounted interiorly of the hollow member the plunger having an upper stop member and a lower stop member with a spring mounted between the lower stop member and the base the shroud being connected to an exteriorly extending portion of the plunger member.
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 April 5, 2006 and granted May 21, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2026.
- 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.