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Expired Canadian patentCanada

Automatic injection syringe

CA 1182020 A · Owner: Duphar International Research B.V. · Inventors: Bekkering, Hendrik M.

CIPO record

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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 invention relates to an automatic syringe comprising a combination of a discharge mechanism a cartridge, holder and a cartridge which is slidably accommodated in the cartridige holder. The cartridge comprises an ampoule having one or more injection liquids, a piston movable in the ampoule and a hypodermic needle which is connected to the front of the ampoule and, if desired, is covered by a sheath to maintain the needle in a sterile condition. The discharge mechanism is provided with a power source which can move the cartridge from an inoperative to an operative condition. further are present locking means for controlling the actuation of the power source and a safety device for …

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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 February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
  • 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 22, 1982
GrantedFebruary 5, 1985
Term endedFebruary 5, 2002
Patent numberCA 1182020 A
Classification (IPC)A61M5/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 22, 1982Patent grantedFeb 5, 1985Term endedFeb 5, 2002

Sources & verification

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