Retaining wall assembly utilizing face panels interlocked with tie-back/anchors
CA 2049124 C · Owner: Atlantic Precast Concrete Inc. · Inventors: Ditcher, Jack; Munkelt, Gary K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A retaining wall assembly is provided herein having a wall face comprised of a plurality of engaging face plates which interlock with tie-backs. In each face plate at least two sides are provided with locking recesses which are displaced rearwardly from the front face. Each tie-back has an elongated base portion and an integral interlocking flange arranged at one of the body. Through its interlocking flanges each tie-back interlocks with four adjacent side blocks. The tie-backs enhance the stability of the retaining wall assembly. The face plates are arranged side-by-side in a plurality of courses. The face plates of the top course are offset from the face plates of the bottom course. The …
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 August 13, 1991 and granted October 6, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2013.
- 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.