Coffee making apparatus
CA 2608312 C · Owner: Appliance Development Corporation · Inventors: Oliver, John P.; Nickerson, Laura J.; Glucksman, Dov Z.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A brewing apparatus (20) for infusing compacted ground coffee in a grounds cup (102) at a brewing station with heated water under pressure. At a brewing station, a piston head (97) with an active seal (96) that is spaced from the grounds cup wall during motion, extends into the grounds cup (102) . When the piston head (97) begins to compact the ground coffee it activates the seal (96) to form a sealed upper end of a brewing chamber. Hot water is admitted to the brewing chamber to produce the coffee. When the brewing cycle is completed, the piston head (97) displaces further to force additional coffee from the grounds. Then the piston head (97) retracts to allow the infusion chamber …
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 May 11, 2006 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 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.