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Expired Canadian patentCanada

Mailing machine including sheet feeding speed calibrating means

CA 2090255 C · Owner: Gallagher, Dennis M. · Inventors: Eckert, Alton B. Jr.; Gallagher, Dennis M.; Schoonmaker, Richard P.

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 having a leading edge and a trailing edge in a path of travel, the sheet feeding structure including a roller, the sheet feeding structure including structure for driving the roller at a desired sheet feeding speed corresponding to a desired reference voltage structure for, controlling the sheet feeding structure the controlling, structure including a microprocessor connected to the roller driving structure, the controlling structure including structure for sequentially sensing the leading and trailing edges of the sheet in the path of travel and providing corresponding successive signals to the microprocessor the, sheet …

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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 23, 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 23, 1997
Term endedFebruary 24, 2013
Patent numberCA 2090255 C
Classification (IPC)B65H43/00 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 24, 1993Patent grantedDec 23, 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.