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Expired Canadian patentCanada

Supporting attachment for a sander

CA 2048175 C · Owner: Oczynski, Zdzislaw · Inventors: Oczynski, Zdzislaw

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

This patent application refers to an attachment held directly or remotely for supporting and pressing a tool to machine body surfaces. This arrangement generates an expanding force along a line extending between the point of support on a base and the point of contact on the working tool. The base and the tool have articulated joints thus allowing for freedom of movement in three planes. The base and the working tool may be connected by either a flexible or a compressed support member. The working tool can be hand held directly or remotely by means of an extendable support and a tool holder. If a power tool is used as a working tool, its operation can be remotely controlled by an …

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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 July 30, 1991 and granted November 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 30, 1991
GrantedNovember 25, 1997
Term endedJuly 30, 2011
Patent numberCA 2048175 C
Classification (IPC)B24D15/00

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 30, 1991Patent grantedNov 25, 1997Term endedJuly 30, 2011

Sources & verification

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