Apparatus and method for windlocking a building opening
CA 2419639 A1 · Owner: Green, Kelly Ray · Inventors: Green, Kelly Ray; Kyle, Donald Bruce; Mullet, Willis Jay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for windlocking a curtain (100) over an opening in a building is disclosed and claimed. The windlocking curtain (100) resides to the exterior of the window, door or other opening and protects it from the intrusion of air, water or debris. In its upper position the windlocking curtain (100) permits normal use of the opening and in its lower position it secures the opening. A flexible corrugated curtain (115) has tension rods (123, 124) therethrough and the tension rods (123 124) run in tracks (111, 112) on each side of the curtain (115) and necessarily on each side of the opening. Interengagement of the tension rods (123 124) with tracks (111, 112) , is …
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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 August 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2022.
- 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.