Patent Yard Sign in
Expired Canadian patentCanada

Cutting of swim bladder

CA 1330477 C · Owner: Sigurdsson, Arni Matthias · Inventors: Sigurdsson, Arni Matthias

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention is a method and a machine for cutting a swimbladder from a spine of a fish after the spine has been removed from the fish or the fish has been flitched. The method includes laying the spine upon a guiding wedge, which perforates the swim-bladder and cuts it open moving the spine forward toward a motor driven knife which cuts the, swim-bladder free from the spine. The machine includes a cantilever beam which guides the spine toward a horizontal motor driven knife. The guiding wedge is fastened into the frame of the machine. Its lower part is elastic in order to be able to cut different sizes of swim-bladders. The forward motion is powered by a conveying wheel belt or arm, …

Read the whole patent

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 July 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 17, 1989
GrantedJuly 5, 1994
Term endedJuly 5, 2011
Patent numberCA 1330477 C
Classification (IPC)A22C25/14

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedMay 17, 1989Patent grantedJuly 5, 1994Term endedJuly 5, 2011

Sources & verification

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