Retaining wall system
CA 2288175 A1 · Owner: Ecoflex Australia Pty. Limited · Inventors: Cashman, Glen; Callinan, Garry Kevin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A retaining wall system (10) is defined which includes a plurality of tyres (11) arranged in a plurality of courses (14). The tyres can be offset within the wall and can be cut in various ways to advantageously improve the strength of the wall. In addition, reinforcing (25 30, 32) formed from tyres or , conveyor belts can be associated with the wall system to improve the structural stability of the wall.
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 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 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.