Lock system
CA 2081452 A1 · Owner: Dreyer, Kurt R. · Inventors: Dreyer, Kurt R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a lock system for a door wall, chest, safe or cupboard, etc. The lock system is covered by a cover plate (32a) and has a bolt (15) or pin (40), etc. which is linked to a main lever (1, 1A), designed to rotate about a pivot bearing (4) and which operates in conjunction with a holder plate (17) or bolt (41), etc. Rotation of the main lever (1 1A) depends on the, motion of a first magnetic block (25) mounted on the cover plate (32a), the main lever (1, 1A) having at least one bore (16) designed to accommodate at least one locking pin (6 24) associated, with a second magnetic block (26) mounted on the cover plate (32a) the second magnetic block being designed to unlock …
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 February 27, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2014.
- 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.