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Expired Canadian patentCanada

Powered reciprocating saw and clamping mechanism

CA 2228021 C · Owner: Bone, Daniel · Inventors: Wren, Philip; Bone, Daniel

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

The invention relates to a powered reciprocating saw in particular to a pruning saw. To simplify use of the saw a clamping mechanism is provided which holds an object in position while it is sawn. The clamping mechanism is mounted at the front portion 4 of the housing of the saw near the saw blade 20. The clamping mechanism comprises: a slide element 30 for sliding movement in cutting direction C of the saw blade a supporting member 30; and a clamping arm 40 being rotatably mounted on the slide element 30 by means of a one way rotary clutch 42 such that the arm can freely rotate in one direction only in which direction the clamping arm 40 moves towards the support member 30 to clamp an …

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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 January 23, 1998 and granted July 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 23, 1998
GrantedJuly 22, 2003
Term endedJanuary 23, 2018
Patent numberCA 2228021 C
Classification (IPC)B27B11/10 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 23, 1998Patent grantedJuly 22, 2003Term endedJan 23, 2018

Sources & verification

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