Corkscrew
CA 2304836 A1 · Owner: Mauffette, Claude · Inventors: Mauffette, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a unique decorative corkscrew for opening bottles having corks therein. The design and function is unique in that the corkscrew secures the neck of the bottle rather than the rim and uses a rotator with a spiral-female thread therein adapted to receive a spiral screw. Not only is the cork easily removed from the bottle, but the device is also adapted to self-remove the spiral from the cork and discard it.
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 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2022.
- 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.