Window drain
CA 2292301 C · Owner: Wark, Scott Arthur · Inventors: Wark, Scott Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Window drain comprises, in general, a base having a horizontally extending lower surface and a sloping downwardly and outwardly upper surface. There to the base here are connected: a front flange an upstanding rear rib, an end flange at each end window supports and spacers attached on the front flange. In one embodiment the window drain is made for a window of a specific width. In another embodiment the window drain, is versatile so it can be used for windows of different widths. In a third embodiment the window drain can be made, in situ, for different window widths.
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 16, 1999 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2021.
- 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.