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Expired Canadian patentCanada

Cartridge for injecting a mixture of two liquid constituents

CA 1315749 C · Owner: Morel, Jacques · Inventors: Morel, Didier; Morel, Jacques

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 cartridge for injecting a mixture of two liquid constituents comprises a reservoir (1) which has a compartment (2) for one of the constituents and a compartment (3) for the other constituent. The reservoir (1) comprises two concentric cylindrical compartments (2, 3), respectively containing a first and a second constituent. A piston (6, 7) is mounted in sliding manner in each of the two compartments (2 3), and means are, provided for sliding the two pistons (6 7) simultaneously. Each, of the compartments (2 3) opens into a common mixing chamber (4) which comprises partitions (8, 9) defining a sinuous path of the mixture of the two constituents between the two compartments (2 3) and the …

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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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 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.
FiledJuly 29, 1988
GrantedApril 6, 1993
Term endedApril 6, 2010
Patent numberCA 1315749 C
Classification (IPC)B65D81/32 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedJuly 29, 1988Patent grantedApril 6, 1993Term endedApril 6, 2010

Sources & verification

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