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Expired Canadian patentCanada

Mailing machine including skewed sheet detection means

CA 2090735 C · Owner: Gallagher, Dennis M. · Inventors: Pfeifer, Thomas M.; Nobile, John R.; Gallagher, Dennis M.

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

A mailing machine base comprising, structure for feeding a sheet in a path of travel, a fence defining against which the an edge of a sheet is normally registered for alignment therewith and thus in the direction of in the path of travel, structure for controlling the sheet feeding structure, the controlling structure including a microprocessor connected to the sheet feeding structure the, controlling structure including structure for sensing a sheet red into and out of blocking relationship with the sensing structure and providing a corresponding signal to the microprocessor, the signal having a first magnitude when a sheet is not disposed in blocking relationship with the sensing …

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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 February 24, 1993 and granted December 16, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.
FiledFebruary 24, 1993
GrantedDecember 16, 1997
Term endedFebruary 24, 2013
Patent numberCA 2090735 C
Classification (IPC)G07B17/00 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 24, 1993Patent grantedDec 16, 1997Term endedFeb 24, 2013

Sources & verification

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