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Expired Canadian patentCanada

Groove forming apparatus and method

CA 1292173 C · Owner: Morgan, Ronald J. · Inventors: Morgan, Ronald J.; Hehr, Kenneth L.

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

A machine to cut grooves in the mitred end portions of frame members of a picture frame, so that connectors can be inserted in these grooves and join the members to form the picture frame. A base structure mounts a pair of frame members spaced from one another, and a motor with a router bit is positioned with the bit between the frame members with the motor and bit being moved laterally in opposite directions to form the grooves.

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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 November 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 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.
FiledJune 24, 1988
GrantedNovember 19, 1991
Term endedNovember 19, 2008
Patent numberCA 1292173 C
Classification (IPC)B27C5/02 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJune 24, 1988Patent grantedNov 19, 1991Term endedNov 19, 2008

Sources & verification

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