Bottle stopper
CA 1192853 A · Owner: Kolb, Raphael · Inventors: Kolb, Raphael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bottle stopper adapted to be inserted into the mouth of a bottle. The stopper is adapted to be sealed to the bottle and has passage means between its ends. A valve member is provided in the passage means and is adapted to close the passage means when the bottle is upright to prevent liquid from entering the bottle. The valve member moves to open the passage means when the bottle is tilted to allow liquid to leave the bottle. Means are provided on the stopper for normally preventing tampering with the valve 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
- Granted September 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2002.
- 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.