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Expired Canadian patentCanada

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CA 1293935 C · Owner: Imperial Chemical Industries Plc · Inventors: Shadwell, David William; Joseph, Martin

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 connection device for two components for example a, container and a dispenser provided with a member moveable, between two positions. In the first position the member permits engagement of the two components. The member moves between the first and second position upon either connection or disconnection of the components and can not be readily moved back to the first position with the member. In the second position the components can not be re-engaged.

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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 23, 1987
GrantedJanuary 7, 1992
Term endedJanuary 7, 2009
Patent numberCA 1293935 C
Classification (IPC)B65D47/06 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 23, 1987Patent grantedJan 7, 1992Term endedJan 7, 2009

Sources & verification

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