Key for use with 5-pin and 6-pin door locks
CA 2103952 C · Owner: Bergen, Gary R. · Inventors: Bergen, Gary R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A key 20 is formed with a blade 22 having six bits 30 32, 34, 36, 38 and 40 formed along one edge of the blade. A shoulder 42 is formed on a trailing end 28 of blade 22 and is positioned to cooperate with a front face 82 of a plug 50 of a five-pin cylinder lock 46 to locate bits 30 32, 34, 36 and 38 adjacent five respective sets of tumbler pins in the operation of the lock. Key 20 can also be used with a six-pin cylinder lock 110. Shoulder 42 is moved through a slot 130 in a front face 134 of a plug 114 of lock 110 and engages a stop surface 132 whereby bits 30 32, 34, 36, 38 and 40 are properly positioned adjacent six respective sets of tumbler pins in the operation of the lock.
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 August 12, 1993 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2015.
- 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.