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Expired Canadian patentCanada

Self-compensating roll

CA 1267003 C · Owner: Guo, Remn Min · Inventors: Ginzburg, Vladimir B.; Guo, Remn Min

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

The invention concerns an improved roll for use in processing flat rolled products. The roll which will, generally be a backing up roll for a work roll has an outer, peripheral portion which is provided with end portions said, end portions being formed as displaceable members extending material at least to approximately the opposite edges of the material to be rolled. The displaceable members are constructed to deflect under the rolling load in a direction and to much a degree to cause a uniform rolling load distribution between the material contacting surface of the work roll and the material being processed.

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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

  • Granted March 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 5, 1986
GrantedMarch 27, 1990
Term endedMarch 27, 2007
Patent numberCA 1267003 C
Classification (IPC)B21B27/02 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedNov 5, 1986Patent grantedMarch 27, 1990Term endedMarch 27, 2007

Sources & verification

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