Safety release security grille
CA 2075712 A1 · Owner: Marmora, Daniele A. · Inventors: Marmora, Daniele A.; Marmora, Fausto; Marmora, Fausto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A security grille (1) adapted to securely close off a window but, which may be manually released from within the building including the window while maintaining security preventing unauthorised access from the exterior of the building. The grille (1) is attached along one edge by hinges (2), or by a releasable mechanism and is lockable in position by locking device (20) on an opposite edge. The locking device (20) may include locking bolts which protrude out through holes (21, 24) which engage holes (22 25), within a surrounding frame (32). The grille (1) can comprise two portions (1a, 1b) joined at their mating edges by further hinges (23). The frame (32) is secured by bolt devices (26) or …
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 February 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2013.
- 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.