Sink stopper
CA 2197819 C · Owner: Moongold Ct Inc. · Inventors: Smith, Ronald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sink stopper comprises a perforated strainer basket a sealing, member, an upwardly extending handle and a downwardly depending, locating stem. The locating stem comprises a base portion and two substantially parallel spaced-apart co-operating legs that are substantially rigid yet resiliently deformable towards each other. Each peripheral surface comprises an outwardly and upwardly sloped guide surface disposed at the bottom end portion thereof, an outwardly and downwardly sloped grate-contacting surface disposed at the top end portion thereof and a, grate-receiving notch disposed between the guide surface and the grate-contacting surface. The grate-receiving notch includes an upwardly …
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 February 18, 1997 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2019.
- 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.