Architectural protection devices and system and method utilizing same
CA 2353406 A1 · Owner: Knickerbocker, John H. · Inventors: Knickerbocker, John H.; Ford, Russell H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with the present invention a protection device is provided for , restricting an object from sliding along an edge formed by a pair of surfaces of a structure. The protection device includes an obstruction fixture having a mounting surface and a body projecting away from the mounting surface and a , fastener securing the mounting surface to at least one of the surfaces of the structure. The obstruction fixture is positioned on the structure with the body positioned sufficiently close to the edge such that the object sliding along the edge will contact the body.
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 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2021.
- 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.