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Expired Canadian patentCanada

Key lock with key isolation

CA 1283792 C · Owner: Rabinow, Jacob · Inventors: Rabinow, Jacob

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This specification describes a lock where a key sets a multiplicity of elements such as disks levers, or others. After setting the elements the key and the, key slot (through which the key enters the lock) is moved out of contact with the elements and is subsequently completely isolated from them. The fence or any other component that co-acts with the previously set elements to open the lock cannot be brought into contact with them until the above isolating action has been completed. SPE6385

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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

  • Granted May 7, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 7, 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.
FiledSeptember 11, 1986
GrantedMay 7, 1991
Term endedMay 7, 2008
Patent numberCA 1283792 C
Classification (IPC)E05B29/02 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedSep 11, 1986Patent grantedMay 7, 1991Term endedMay 7, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.