Door security apparatus
CA 2283545 C · Owner: Ryan, Gary D. · Inventors: Ryan, Gary D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A door security device operative to secure the door in a fully closed and partially opened state is disclosed. A vertically oriented housing mounted close to the handle side on the inside surface of the door contains a coaxial brace bar the bottom end of which extends out of the housing but does not reach the floor. A second vertically oriented brace bar is slideably mounted onto horizontal rods which are affixed proximate to the bottom of the vertical brace bar. To lock the door the bottom end of the slideable brace bar is inserted into one of two different floor plugs the first of which is positioned adjacent to the location of the closed door (bracing the door in a fully closed position) …
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 September 3, 1999 and granted October 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 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.