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Expired Canadian patentCanada

Narrow gap plate mounting apparatus and method

CA 2038809 C · Owner: Rockwell International Corporation · Inventors: Gevis, Albert

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 narrow gap printing plate mounting apparatus includes a printing plate (10) with a substantially curved preferably, involute tail member (24) at one end of a printing plate body (12) which is received through a narrow mating gap (20) in a rotary cylinder (18) and held against correspondingly curved cavity wall (28) by means of a resilient locking member (30). The locking member (30) presses the curved tail member (24) against the curved wall (28) in a direction which is substantially normal thereto to reduce longitudinal strain on the tall member (24). Another tail member (22) is inserted at the leading edge (20A) of the gap (20) while the curved tail member (24) presses against the …

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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 March 21, 1991 and granted December 8, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 1991
GrantedDecember 8, 1998
Term endedMarch 21, 2011
Patent numberCA 2038809 C
Classification (IPC)B41F27/12 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 21, 1991Patent grantedDec 8, 1998Term endedMarch 21, 2011

Sources & verification

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