Wall systems employing extruded panel sections
CA 2000403 A1 · Owner: Cole, Richard W. · Inventors: Tassone, Joseph V.; Marsh, Richard L.; Cole, Richard W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wall systems are disclosed which employ a plurality of individual panels formed of extruded polymeric material joined in edge-to-edge relation including wale members which are vertically offset and interlocked at end portions thereof with adjacent wale members. The wall systems include connector elements for joining and interlocking the adjacent panel edges, and panels are disclosed each, having a continuous convex surface between their opposite side edges and strengthening ribs formed on a concave surface disposed opposite the convex surface thereof. A revetment system is disclosed in which a pair of wall sections are positioned in facing spaced-apart relation and joined by tie bolts …
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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
- Filed October 10, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2011.
- 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.