Protective structure
CA 2267156 A1 · Owner: Valtanen, Jarkko · Inventors: Valtanen, Jarkko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a protective structure such as a protecting plate or , element that is meant particularly for covering of ground to protect and/or coat the same and/or for a like purpose. Into the protective structure there has been arranged at least a thermal insulation (1) and a support arrangement for supporting of the same onto the ground. The thermal insulation (1) of a protective structure, that is meant particularly for temporary protecting of a field of grass and/or of ice comprises at least one preferably plastic based, such as cell cellular, foam plastic structured or a like thermal insulation layer (1'), whereby a support arrangement (1a) that is formed of 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 September 15, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2019.
- 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.