Drain pipe system
CA 1096745 A · Owner: Oy All-Plast Ab · Inventors: Mannisto, Kalervo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a drain system comprising one or several fitting connecting tubes connecting each with the bottom of a basin and connecting to a collecting pipe connecting with a disposal drain, said collecting pipe comprising a water seal constituted by a pipe bend characterized by a, substantially horizontal collecting pipe on the end of which the water seal constituted by a pipe bend is in such position that the connecting tube or tubes without water seal is/are substantially at right angles to the imaginary plane passing through the central axis of the collecting pipe and of the pipe bend constituting the water seal.
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
- Granted March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
- 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.