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Expired Canadian patentCanada

Automatic work guidance mechanism

CA 1095336 A · Owner: Usm Corporation · Inventors: Babson, Edward S.; Herdeg, Donald F.; Mercaldi, William B.

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 sewing machine having a head and a work supporting surface spaced therefrom. A stitching mechanism is carried by the head and includes a needle reciprocable relative to a portion of the work supporting surface. A unitary feeding-steering element is movably mounted on the opposite side of the work from the portion of the work supporting surface for guiding a workpiece thereon. The feeding-steering element is responsive to a predetermined pattern element moving with the work incrementally to guide it during each increment the work is fed.

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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 February 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 10, 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.
FiledMarch 7, 1980
GrantedFebruary 10, 1981
Term endedFebruary 10, 1998
Patent numberCA 1095336 A
Classification (IPC)D05B21/00

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Application filedMarch 7, 1980Patent grantedFeb 10, 1981Term endedFeb 10, 1998

Sources & verification

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