Locking apparatus for sliding door
CA 1290365 C · Owner: Lin, Andrew · Inventors: Lin, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A locking apparatus for sliding doors which comprises a first leaf and a second leaf slidable in a groove, and including a hooking assembly mounted at the side frame of the first leaf and a hook-retaining block mounted at the corresponding side frame of the second leaf. The hooking assembly comprises a vertically slidable locking block which can be elevated by applying a key into a lock outdoors or by manual lift indoors such that the sliding door will be locked. An overriding safety lock pivotal on the hooking assembly keeps the slidable locking block at its uppermost (locked) position if the overriding safety lock has been pushed.
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
- Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.