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Expired Canadian patentCanada

Machine for stiffening and forming sheet material

CA 1115007 A · Owner: Usm Corporation · Inventors: Hollick, John G.

CIPO record

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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 machine for stiffening and forming a selected area of flexible sheet material, for instance an end portion of a shoe upper comprises work support, mechanism including a universal female preformer having work-accommodating dihedral surfaces, an applicator for depositing on a portion of the selected area a predetermined volume of molten resin substantially in proportion to that area, and a presser complemental to the cavity defined by said surfaces and relatively movable into and out of cooperative work-pressing relation with respect to the work support to spread the molten resin and impart appropriate thickness gradient thereto throughout the selected area whereby upon cooling, it is …

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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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 12, 1979
GrantedDecember 29, 1981
Term endedDecember 29, 1998
Patent numberCA 1115007 A
Classification (IPC)A43D11/00

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJune 12, 1979Patent grantedDec 29, 1981Term endedDec 29, 1998

Sources & verification

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