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Expired Canadian patentCanada

Compliance apparatus and methods for gripping and transporting workpiece sheets such as appliance door blanks to be formed to and from a properly aligned forming position at a work station

CA 2098149 C · Owner: Nichols, John W. · Inventors: Nichols, John W.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Compliance apparatus, for gripping and transporting workpiece sheets such as appliance door blanks to be formed to and from a work station having precision locator sheet stop surfaces is, mounted on a carrier for travel in a generally horizontal path toward the work station. The compliance apparatus includes a plurality of generally horizontally spaced apart, workpiecealigned suction grippers for collectively gripping the top surface of a workpiece sheet. Resilient mechanism connecting each of the grippers to the carrier provides for relative individual lateral movement of the sheet carrying grippers from neutral positions to positions displaced therefrom in any required direction, as …

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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 10, 1993 and granted March 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2015.
  • 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 10, 1993
GrantedMarch 11, 1997
Term endedJune 10, 2013
Patent numberCA 2098149 C
Classification (IPC)B21D43/00 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJune 10, 1993Patent grantedMarch 11, 1997Term endedJune 10, 2013

Sources & verification

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