Window propelling system
CA 2326415 A1 · Owner: Licking, Michael A. · Inventors: Licking, Michael A.; Redden, Warren C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A window propelling system for rapidly opening a window or door. The window propelling system is designed for installation with existing units and preferably includes a lift assembly (58) a cylinder assembly (60), a hammer , assembly (62) a firing assembly (64) and a secondary triggering assembly (66). The lift assembly includes a lift cable (42) attached at opposite ends to the window or door. The cylinder assembly (60) includes a piston cable (82) which drives the lift cable (42) during emergency opening. The cylinder assembly (60) in turn, is actuated by the firing assembly (64) in response to operation of the hammer assembly (62). The hammer assembly (62) is released by either …
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 March 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2020.
- 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.