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Expired Canadian patentCanada

Swivelable cylinder driven by an electric individual drive

CA 2237424 C · Owner: Man Roland Druckmaschinen Ag · Inventors: Geissenberger, Stefan; Schall, Nils-Hendric; Feller, Bernhard

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 cylinder for a printing press is adjusted away from a printing stock web or an adjacent cylinder by rotation of an eccentric element. The change in position caused by the movement of the eccentric element is compensated by an additional rotating movement superposed on the rotating movement of the cylinder such that the outer surface of the cylinder has no relative velocity relative to the adjacent cylinder or the printing stock web. Compensation is carried out by a regulating circuit to which is supplied the actual rotational angle of the cylinder with respect to the eccentric element and the actual rotational angle of the eccentric element with respect to the side wall or an angular …

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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 May 12, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 12, 1998
GrantedJanuary 29, 2002
Term endedMay 12, 2018
Patent numberCA 2237424 C
Classification (IPC)B41F13/38 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 12, 1998Patent grantedJan 29, 2002Term endedMay 12, 2018

Sources & verification

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