Apparatus for use in filling reservoirs to a predetermined level
CA 2094326 A1 · Owner: Marceau, Kathleen · Inventors: Vallee, Jean; Tardif, Louis; Lavoie, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns a device used to fill reservoirs with liquids to predetermined levels. The apparatus includes a valve for controlling the flow of liquid which passes from a pressured conduit through the said apparatus and empties into a reservoir. The said valve may be re-opened manually or by a decrease in pressure in the incoming conduit. The apparatus may be used with a garden hose, for filling swimming pools and agricultural or industrial reservoirs, to a desired level.
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 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2015.
- 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.