Window well
CA 2547129 C · Owner: Tapco International Corporation · Inventors: George, Glen R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modular window well arrangement includes one or more window well members. The window well members can be interconnected in a vertically stacked arrangement to provide the required overall height. Snap-connectors interconnect the vertically adjacent window well members and a plurality of , steps provide for escape. The window well members may have different sizes and extension walls may be utilized to increase the size of the window well members to provide for a wide variety of configurations. The window well members may be made of a relatively lightweight structural foam material.
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 November 18, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.