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Expired Canadian patentCanada

Sander shield

CA 1262408 C · Owner: Roestenberg. Jerome · Inventors: Roestenberg. Jerome

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 vacuum shield (22) for an abrading part of an abrading machine (10) comprising a generally planar top wall (24) mounted on the abrading machine; the top wall of the shield being made of a rigid transparent material and has a first segment (28) having an aperture through which the abrading part (16) can be supported and driven by the abrading machine and a second segment (30) pivotally connected to the first segment for upward pivotal movement of the second segment about its connection to the first segment; a plurality of outlets (38) in said shield each adapted to receive a vacuum hose to provide pneumatic communication between the hose and the abrading parts; and a flexible skirt (26) …

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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 October 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 17, 1986
GrantedOctober 24, 1989
Term endedOctober 24, 2006
Patent numberCA 1262408 C
Classification (IPC)B24B55/06

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 17, 1986Patent grantedOct 24, 1989Term endedOct 24, 2006

Sources & verification

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