Cork stopper for bottles of wine
CA 2193075 C · Owner: Hojnoski, David E. · Inventors: Hojnoski, David E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a new and useful combination of a bottle stopper and stopper-remover comprising cylindrical stopper means (10) of resilient material, the stopper means (10) having top, bottom and side surfaces and a deep well (14) extending into the stopper (10) from the top surface (I6); a hollow sleeve (30) in and substantially conforming in cross section to the well (14), the sleeve (30) having top and bottom ends and inner and outer surfaces; a series of protruding interference members (36) on the outer surface, at least one defeat member (46) on the inner surface (43, 44) spaced a predetermined distance from the top and bottom; a pair of openings (47) through opposite sides of the …
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 June 16, 1994 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2016.
- 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.