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Expired Canadian patentCanada

Automatic injector and cartridge or ampoule for use in injectors

CA 1295902 C · Owner: Sprenger, Rolf · Inventors: Sprenger, Rolf; Scheller, Albert; Schluter, Eberhardt

CIPO record

Overview

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

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Abstract From the Canadian patent

Automatic injection device as well as ampoule or, cartridge for the same. In order to obtain a high speed discharge of an ampoule-hypodermic needle as well as to, ensure an operationallly reliable low weight, robust small, apparatus or ampoule at long storability sterility and re-, usability of components for a plurality of injection substances, the needle body of the cannula hypodermic needle is constructed over part of its extension as a needle bearing guided in sliding fit on the inner wall of the ampoule. Particularly with a view to administering separate injection substances, it is provided for an ampoule with needle and lifting element, that within the ampoule there is arranged a …

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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 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 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 30, 1987
GrantedFebruary 18, 1992
Term endedFebruary 18, 2009
Patent numberCA 1295902 C
Classification (IPC)A61M5/24 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 30, 1987Patent grantedFeb 18, 1992Term endedFeb 18, 2009

Sources & verification

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