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Expired Canadian patentCanada

Device suitable for use as a dual-chambered can

CA 1312579 C · Owner: Schiemann, Wolfram · Inventors: Schiemann, Wolfram

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

A device suitable for use as a single-piece dual-chambered can of synthetic material has a larger chamber, for holding gasoline a smaller chamber for holding oil, and a thin connecting member arranged between said chambers in the separation plane between the two said chambers and forming part of said chambers. Said device has on its upper side a handle straddling the separation plane and possessing a root that begins on the upper side of said larger chamber. The said connecting member is non-linear along a considerable section of its length. The deviation from the linear is many times greater than the thickness of the connecting member.

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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 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1988
GrantedJanuary 12, 1993
Term endedJanuary 12, 2010
Patent numberCA 1312579 C
Classification (IPC)B65D8/04

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 30, 1988Patent grantedJan 12, 1993Term endedJan 12, 2010

Sources & verification

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