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Expired Canadian patentCanada

Flexible container

CA 1210711 A · Owner: Norsk Hydro A.S · Inventors: Myklebust, Eirik; Rasmussen, Odd F.; Juel, Anders

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

The present invention relates to a flexible container for filling, transport and storage of bulk material and is made from at least one piece of base material (1). The bottom of the container is formed from at least four in pairs equally large flaps (4) which are direct extensions of the container's side walls. The bottom flaps (4) are formed by cut lines (a,b), (c,d), (a',b') and (c',d') in the piece of material (1) and the top angles .alpha. and .beta. of the flaps between the respective cut lines turn in against the centre of the bottom. The sum of the top angles .alpha. and .beta. of the flaps is less than 360° such that the container's bottom formed by joints (7) of the flaps (4) is …

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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 September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 1984
GrantedSeptember 2, 1986
Term endedSeptember 2, 2003
Patent numberCA 1210711 A
Classification (IPC)B65D88/16 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedAug 30, 1984Patent grantedSep 2, 1986Term endedSep 2, 2003

Sources & verification

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