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Expired Canadian patentCanada

Device for collecting materials as for example oil floating on a water surface

CA 1113022 A · Owner: Bernhardsson, Yngve · Inventors: Nyfeldt, Harry; Bernhardsson, Yngve

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

An apparatus is described for collecting materials such as oil floating on water, wherein the materials are funnelled into a collecting device by floating walls towed through the water, the collecting device being a succession of hose-shaped sections detachably interconnected to each other so that the trailing end section may be pursed sealed and detached when a sufficient amount of the collected material is received thereby.

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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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 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.
FiledFebruary 1, 1979
GrantedNovember 24, 1981
Term endedNovember 24, 1998
Patent numberCA 1113022 A
Classification (IPC)E02B15/04

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedFeb 1, 1979Patent grantedNov 24, 1981Term endedNov 24, 1998

Sources & verification

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