Wall drainage system
CA 1202190 A · Owner: Sartor, Joseph · Inventors: Sartor, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a wall drainage system for foundation walls which has particular though not exclusive application to the provision of drainage between shoring walls and concrete walls placed against such shoring walls. The drainage system comprises a cover of water-pervious filter material placed over the shoring wall to prevent passage of soil particles and a water-impervious cladding located over the cover. The cladding is formed of generally rectangular panels of waterimpervious material arranged in edge-to-edge abutted relationship. One face of each panel is located against the cover, and has a plurality of vertical drainage grooves which are in fluid communication with those of …
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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 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 2003.
- 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.