Internally flashed siding channel
CA 2105825 C · Owner: Alcoa Inc. · Inventors: Vagedes, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A channel for lapped siding includes an elongated nailing strip and an abutment strip with an upper cover strip. This provides a generally C-shaped cross-section. Inside the channel is a rectangular tab that extends at an angle away from the nailing strip up to the cover strip. The channel is nailed to a building. Lapped siding is also nailed to the building with edges of the siding positioned in the channel. The edge of the siding is slit horizontally to allow the tab to intersect the edge of the siding. Any water that gets into the channel will run along this tab away from the building wall to an exterior surface of the siding. This keeps the water from flowing behind the siding.
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 September 9, 1993 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2015.
- 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.