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Expired Canadian patentCanada

Debris removal

CA 2214520 C · Owner: Bae Systems Plc · Inventors: Baker, Anthony Thomas

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

An attachment, for use with a vacuum, powered debris removal system, said attachment, comprising a debris collection bowl, said bowl, having a first aperture through which a material, cutting tool may be removably inserted, a, second aperture through which a vacuum source, may be connected and, a third aperture the open, circumferential face of which is designed to lie, substantially in contact with a material undergoing, a cutting operation such, that in use, as debris is, generated by the action of the cutting tool on said, material, substantially all debris is collected in said, bowl and thereby extracted through the second, aperture by the action of the vacuum source.

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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 December 18, 1996 and granted January 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 1996
GrantedJanuary 28, 2003
Term endedDecember 18, 2016
Patent numberCA 2214520 C
Classification (IPC)B23Q11/00 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 18, 1996Patent grantedJan 28, 2003Term endedDec 18, 2016

Sources & verification

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