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Expired Canadian patentCanada

Oscillating belt/spindle sander

CA 2178855 C · Owner: Schroeder, James D. · Inventors: Schroeder, James D.

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 oscillating belt sander or spindle sander is disclosed. The sander includes a motor shaft that extends upwardly through a worktable that supports a workpiece. The motor shaft supports a belt sander or spindle sander sanding surface. A combined motor and mechanical drive transmits rotational and reciprocating motion to the motor shaft which includes input and output motor shaft ends. The motor operates to impart rotational motion through the output motor shaft end while the mechanical drive is connected to the input motor shaft end and also imparts reciprocating motion through the output motor shaft end. The output motor shaft end facilitates interchangeable mounting of a spindle sander …

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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 June 12, 1996 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 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.
FiledJune 12, 1996
GrantedAugust 1, 2000
Term endedJune 12, 2016
Patent numberCA 2178855 C
Classification (IPC)B24B31/06

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 12, 1996Patent grantedAug 1, 2000Term endedJune 12, 2016

Sources & verification

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