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Expired Canadian patentCanada

Power table tool assemblies with dust collection system

CA 2075677 C · Owner: Udelhofen, Patrick J. · Inventors: Udelhofen, Patrick J.; Polk, Gary

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 power table tool having an outlet port positioned relative to the cutting member of the tool so that the dust and other debris generated by the cutting member can be removed from the interior of the tool assembly through an exhaust system. A guard member is provided for the outlet port to prevent insertion of extraneous matter into the interior of the tool as well as to protect the outlet from clogging as a result of the removal of the sawdust and other debris from the interior. The guard member is structured in a manner such that the area of the openings presented in the guard member is greater than about 100% of the area of the outlet port itself. The port is specifically aligned …

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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 August 10, 1992 and granted October 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 10, 1992
GrantedOctober 25, 1994
Term endedAugust 10, 2012
Patent numberCA 2075677 C
Classification (IPC)B23Q11/00 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedAug 10, 1992Patent grantedOct 25, 1994Term endedAug 10, 2012

Sources & verification

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