Roof panel
CA 1234960 A · Owner: Froiseth, Per · Inventors: Froiseth, Per
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 roof panel (1) which includes a support, course (12) for the supporting of a water-impervious layer (11) or for the supporting of a windproof layer. The roof panel additionally includes a lower diffusionproof layer (15) and normally one insulating course (14) located in the region between the lower diffusionproof layer and the support course. In accordance with the invention the roof panel is disposed with a frame (16) which forms the outer edges (20-23) of the roof panel, in addition to which the frame along opposite edges is disposed with devices in order to affix adjacent roof panels in relation to one another and in order to affix the roof panels to a …
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 April 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 12, 2005.
- 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.