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Expired Canadian patentCanada

Method of manufacturing overshoes

CA 1298043 C · Owner: Weber, Robert · Inventors: Weber, Robert

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 method of manufacturing overshoes and head covers made from an elongated rectangular flexible sheet of material. The method comprises the following steps: (a) gathering the sheet material by parallel stitching two elastic strips on the opposite side edge portions respectively of the sheet; (b) folding the sheet in two along its longitudinal center line so as to bring the two gathered side edge portions in respective abutting register; (c) with an ultrasonic press weakening, narrow sections of the sheet transversely to the axis of the longitudinal center line at regular intervals and concurrently, cross-bonding the sheet along both edge portions defined by each one of the weakened narrow …

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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 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1988
GrantedMarch 31, 1992
Term endedMarch 31, 2009
Patent numberCA 1298043 C
Classification (IPC)A43D97/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedDec 23, 1988Patent grantedMarch 31, 1992Term endedMarch 31, 2009

Sources & verification

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