Platform components for assembly into trackways or the like
CA 2233517 A1 · Owner: De Zen, Vic · Inventors: De Zen, Vic; Hoedl, Herbert K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Load supporting platform components adapted for laying down and being connected with like components to form a trackway roadway, or, support platform, said component comprising a rectilinear platform at least the, exterior of which is formed of plastic material selected to provide a predetermined stiffness. Such platform components include telescopically engaging lower ground engaging platform components with upwardly facing support members and upper track supporting platform components having planar cores totally encapsulated in plastic material and provided with downwardly projecting support members.
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 March 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.