An arrangement in a drain system and a method for taking care of drain media
CA 2322808 A1 · Owner: Split Vision Development Ab · Inventors: Eriksson, Bertil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an arrangement in a drain water system having a main drain conduit the latter is designed as a closed ring conduit (19) and pump members (17, 18) , are arranged to pump drain media emanating from different buildings (6) to and into the ring conduit for transport therein through pumping action. Devices (27-31) for taking care of drain media are connected to the ring conduit through a branch (12, 13) each. Valve members (24 25, 32) are arranged in , each connection to the ring conduit and optionally controllable so as to either open for in the case of a feed connection allow pumping of drain media into the ring conduit and in the case of a device connection allow drainage of drain …
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 25, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2021.
- 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.