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Expired Canadian patentCanada

Process and apparatus for shirring tubular casings

CA 1232727 A · Owner: Hoechst Aktiengesellschaft · Inventors: Weinheimer, Alois; Regner, Richard; Romeike, Arno

CIPO record

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Abstract From the Canadian patent

Disclosed is a process for shirring tubular casings in particular sausage casings, in which the casing is conveyed in the direction of its longitudinal axis and shirred against a counterforce by means of a shirring tool. The shirred tubing portion is divided into individual shirred sticks of a predetermined length and if, appropriate, the cut-off shirred sticks are further compressed. While being shirred and in the shirred state the casing is internally supported. For cutting-off a shirred tubing portion, the transport of the casing in the direction of its longitudinal axis is momentarily interrupted, the internal support is withdrawn from the severing region, and the unshirred or deshirred …

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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 16, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2005.
  • 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 14, 1984
GrantedFebruary 16, 1988
Term endedFebruary 16, 2005
Patent numberCA 1232727 A
Classification (IPC)A22C13/02

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJune 14, 1984Patent grantedFeb 16, 1988Term endedFeb 16, 2005

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