Integrated armor system
CA 2267218 C · Owner: Mccorquodale, John A. · Inventors: Pramono, Wasi Tri; Mccorquodale, John A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An erosion control system is useful for coastlines riverbeds, and the like , from soil erosion caused by a wavefront. The system typically includes an integrated armored layer mounted upon and covering an embankment adjacent to the shoreline. The armored layer comprises a plurality of blocks (30) affixed together in a chainlike configuration (24). The blocks (30) are secured together by adjoining members (40) disposed between neighboring blocks (30). Each chain (24) is linearly aligned in a direction abutting the wavefront and each, chain (24) abuts neighboring chains but not affixed in any manner thereto.
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 September 23, 1997 and granted March 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2019.
- 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.