Anaerobic tea steeper and method of use
CA 2485946 A1 · Owner: Lee, Sin Hang · Inventors: Lee, Sin Hang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention introduces a container in the form of a mug with a lid or in the form of an enclosed vessel of any size and shape for tea steeping wherein the dried tea leaves are extracted with hot water neither in contact with oxygen in the free air nor in contact with oxygen in a pocket of free air in order to maximize the preservation of the antioxidants in the aqueous tea extract to be used as a health-~promoting beverage. In accordance with a special aspect of the invention, a standard method of using the novel anaerobic tea mug for preparation of tea extract to be consumed in humans and in dogs for the purpose of disease prevention is described.
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 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2025.
- 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.