Improving roofing tiles
CA 2431451 A1 · Owner: Porat, Ofer · Inventors: Porat, Ofer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An innovative roofing tile is presented the roofing tile configured to allow , liquid such as rain to flow through the roofing tile. The innovative roofing tile allows the design of a roof with ahidden gutters. Such a roof is both esthetic and allows for a low-maintenance and robust gutter system.
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 December 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 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.