Window bar guard with security release
CA 2005270 C · Owner: Pickell, Cameron · Inventors: Pickell, Cameron
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window bar guard with emergency spring loaded release. The bar guard comprises a rigid bar grillwork having a plurality of spaced apart first set of parallel bars and a plurality of interconnecting spaced apart second set of parallel bars. The bar grillwork is adapted to span a window opening to block human entry. The grillwork is mounted for pivotal movement at one end, and releasably secured at an opposite end for effecting emergency egress.
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 12, 1989 and granted November 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2011.
- 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.