Rotating tilt latch
CA 2176901 C · Owner: Mauro, Gerald D. · Inventors: Mauro, Gerald D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window having a frame and at least one sash that is at least partially removable from the frame. The frame includes a sash opening and at least one sash engaging surface. At least one sash having at least one frame engaging surface is slidably mounted in the sash opening of the frame so that the frame engaging surface at least partially engages the sash engaging surface. At least one sash stop is mounted in the frame and is movable between an extended position and a retracted position. The sash stop is structured to maintain the sash in position in the sash opening when the sash stop is in the extended position. The sash stop includes resilient means between the frame and the sash stop …
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 May 17, 1996 and granted May 11, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2018.
- 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.