Foundation for cellarless houses
CA 1214947 A · Owner: Profoment Utvecklings Ab · Inventors: Ericsson, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foundation for cellarless houses comprises a foundation wall (6) whose underside is disposed on a level below the ground surface (4) surrounding the house (1) and serves to support the house and, together with a bearing floor structure (5), also to define a bottom space (12) in the area above the ground on which the house is erected. The floor structre (5) has a lower portion which is air permeable in order, via the floor structure to, permit supplying air of substantially room temperature to said bottom space (12) from which the air is thereafter evacuated, According to the invention, said lower portion exclusively consists of a thin air permeable web (11) and a heat insulating layer …
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
- Granted December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.