Roofing panel
CA 2011480 C · Owner: Waller, Michael B. · Inventors: Waller, Michael B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a panel for installation with similar adjacent top, bottom and side panels to form a roof having the appearance of a wooden shake roof. The panel has a generally rectangular panel body with an irregular surface of generally trapezoidal shake-like modules of different heights and widths, which surface is symmetrical only about the lateral center line of the panel. The modules at the ends of the panel body are configured to overlap with an end module of an adjacent side panel. The panel also features a nose flange extending downwardly from the front edge of the panel body which is irregularly configured so that the nose flange bottom edge is adapted to abut the panel body of an …
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 March 5, 1990 and granted January 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 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.