Stair treadcover
CA 2369339 A1 · Owner: Vallieres, Jean-Pierre · Inventors: Vallieres, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A floor mat for use over ground in subfreezing climates. The floor mat consists, of a planar sheet having an exposed top face a ground-engageable bottom face, and a peripheral edge portion. A plurality of studs made from thermally conducting , material are integrally connected to the sheet and project upwardly from its exposed top face. A, number of cavities are formed within the sheet in register with the studs these cavities, opening through the sheet bottom face and forming thermal wells. The studs are of such, a length as to extend upwardly beyond the layer of ice overlying the floor mat, wherein, the top free end tip of the studs will capture sun rays and transfer , radiative heat …
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 January 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 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.