Siphon for tank type toilet
CA 2230268 A1 · Owner: Smith, Wade W. · Inventors: Smith, Wade W.; Saar, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A siphon for use with a flush type toilet having a tank with a drain hole at the bottom. The siphon comprises a vertical tubular discharge portion including a vertical tube which is secured within the drain hole in the bottom of the tank. The siphon also includes a bell shaped inlet portion including a connecting portion having a downwardly extending tubular portion for telescopic insertion into the vertical tube. A hole is defined in the bell shaped inlet portion and an elbow is secured within the hole and extends downwardly, terminating at a height selected to define the desired flush height of the toilet. The flush volume can be automatically set to either a normal or low volume flush …
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 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2020.
- 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.