Safe keeping device for a key
CA 2016143 C · Owner: Sotiriadis, Panagiote · Inventors: Sotiriadis, Panagiote
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a device for the safe-keeping of a key, which device comprises a cylindrical lock of the tumbler type provided with a rotary barrel operable by the key and a bolt which is displaceable between a first and a second positions when the cylinder barrel is rotated by the operating key and has an extension which projects out of the lock housing. The lock is of the type where the key becomes captive in the barrel after insertion and rotation of the barrel for moving the bolt to the second position. The device further comprises, in combination with the cylindrical lock a tube, which is coaxial with the bolt and is located outwardly of the lock housing, the bolt extension being …
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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 May 7, 1990 and granted June 21, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2012.
- 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.