Improved disc tumbler lock
CA 2477141 A1 · Owner: Lindstrom, Marko · Inventors: Lindstrom, Marko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disc tumbler lock, which comprises a lock case (1) which includes a bolt , (3) displaceable with a key of the lock and a number of locking discs (13) provided with locking channels (17) and which are displaceable with the key of the lock against the force of a spring (14) to open the lock and for guiding the movements of which the lock case is provided with stationary guiding members (8,9), and a locking pin (12) dependent on the movements of the bolt and which is arranged to cooperate with the locking channels (17) of the locking discs. At least one of the locking discs (13) is equipped with gripping means (18), which, when the bolt (3) is pressed inwards to the lock case are …
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 March 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2025.
- 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.