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Expired Canadian patentCanada

System for removing agglomerates from a developed image on a photoreceptor

CA 2076783 C · Owner: Vouros, John S. · Inventors: Seyfried, Richard W.; Vouros, John S.; Lemmon, David J.

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

An agglomerate removal device for removing unwanted particles from images on a photoreceptor includes vacuum pick off source and baffles that create a controlled aerodynamic drag under the photoreceptor before the images reach a transfer station. Removing the agglomerates improves the quality of images transferred at the transfer station to receiving substrates.

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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 August 25, 1992 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 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.
FiledAugust 25, 1992
GrantedSeptember 15, 1998
Term endedAugust 25, 2012
Patent numberCA 2076783 C
Classification (IPC)G03G21/00 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedAug 25, 1992Patent grantedSep 15, 1998Term endedAug 25, 2012

Sources & verification

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