Roof system with rows of superimposed tiles
CA 2410310 A1 · Owner: Novitech · Inventors: Desbois, Christophe; Gotti, Jean-Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a roof system with rows of superimposed tiles (1) comprising rafters (4) and parallel horizontal shingles (2) fixed to the rafters each shingle (2) consisting of a shaped section having an upper planar support surface (2c) partly present on a catching wing (2b) projecting upwards in the direction of the slope of the roof whereon is engaged, further down, at least a hook (1a) open downwards, formed on the low marginal part of the bottom surface (1b) of each tile of an upper row. The invention is characterised in that it comprises a rail (3) fixed in the direction of the slope, on the upper surface of each rafter (4) said rail (3) being provided, on its top surface with …
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 May 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2023.
- 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.