Arrangement in screening of objects, especially residential houses
CA 2029808 C · Owner: Isola A/S · Inventors: Mogstad, Tore
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement for the protection of a building structure, especially residential houses from the intrusion of, fluids, especially unpleasant or detrimental gases comprising by providing around a portion of the foundation wall a foundation wall membrane having an irregular surface and at the top, thereof being sealed against the outer surface of the foundation wall, and further comprising a ventilation channel which is connected to means for the removal of said fluids in a direction away from said foundation wall and the associated basement.
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 November 13, 1990 and granted February 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2012.
- 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.