Sub-grade thermo-structural bridge
CA 2390653 A1 · Owner: Moroschan, Casey · Inventors: Moroschan, Casey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The Sub-Grade Thermo-Structural Bridge is intended to be used as a base in the construction of, new road and runway/tarmac beds and beds for slab-on-grade structures such as building pads, pedestrian walk ways and the like to prevent or minimise sharp and/or significant differential, settlement of the bed and the surface toppings be they concrete asphalt, gravel or some other, surfacing material due to failure in the sub-grade matrices below the Thermo- Structural Bridge, because of inhet weak characteristics due to perma-first muskeg, ice lensing, organics, and, the like. In this invention after the grade has been excavated and/or graded to its preliminary, rough grade, a grid of …
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 July 2, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2024.
- 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.