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Expired Canadian patentCanada

Wheel for a vacuum projection grinder

CA 1264555 C · Owner: Sevelinge, Gerard · Inventors: Sevelinge, Gerard

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

Wheel for a vacuum projection grinder which comprises downstream of each outlet aperture of the channels in, relation to the direction of the projection of the particles, a member fixed for rotation with the wheel. this makes it possible on the one hand to form at the end of the, guide face of each channel a stable protective cushion, composed of the particles themselves and extending the stable self-protection layer, and on the other hand to eliminate the contact force between the particles and the wheel before the ejection and projection of said particles onto the target.

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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
  • 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 28, 1987
GrantedJanuary 23, 1990
Term endedJanuary 23, 2007
Patent numberCA 1264555 C
Classification (IPC)B24C5/06 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 28, 1987Patent grantedJan 23, 1990Term endedJan 23, 2007

Sources & verification

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