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Expired Canadian patentCanada

Tool positioning assembly

CA 2077357 C · Owner: Steinbrunner, Joseph Gregory · Inventors: Klahn, Francis Charles; Steinbrunner, Joseph Gregory; Glass, Samuel William Iii

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 tool positioning assembly for use inside a steam generator. A loading tool assembly removably attachable to a support base is used to insert the support base into the steam generator through a manway opening. The support base is removably attached to the steam generator at the manway. A retractable foot assembly pivotally attached to the support base stabilizes the support base inside the steam generator. A track assembly removably attachable to the support base after removal of the loading tool assembly receives an arm. A driven cogwheel on the waist of the manipulator engages a rack on the track assembly and support base for selectively driving and positioning the arm thereon. A tool …

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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 September 2, 1992 and granted October 18, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 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.
FiledSeptember 2, 1992
GrantedOctober 18, 1994
Term endedSeptember 2, 2012
Patent numberCA 2077357 C
Classification (IPC)B25J9/00 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedSep 2, 1992Patent grantedOct 18, 1994Term endedSep 2, 2012

Sources & verification

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