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Expired Canadian patentCanada

Multi-layer synthetic resin can body and method for manufacturing the same

CA 1265072 C · Owner: Aoki, Daiichi · Inventors: Orimoto, Hiroyuki; Aoki, Daiichi

CIPO record

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

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Abstract From the Canadian patent

This invention provides a biaxially oriented multi-layer synthetic resin can body and method for manufacturing the same wherein despite a synthetic resin can body of a multi-layer construction which is manufactured by cutting a bottle-like intermediate member obtained by stretch blow molding a bottomed parison the cut resin can, be used again as resin material and when an open edge is cut and formed for seaming, an end of each layer is not exposed and peeling between layers is hard to occur the, can body being economical and excellent in durability gas, barrier property and heat resistance.

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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 22, 1985
GrantedJanuary 30, 1990
Term endedJanuary 30, 2007
Patent numberCA 1265072 C
Classification (IPC)B65D1/12 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedApril 22, 1985Patent grantedJan 30, 1990Term endedJan 30, 2007

Sources & verification

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