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Expired Canadian patentCanada

Artificial gland for implantation in the human body

CA 1303798 C · Owner: Ellingsen, Olav · Inventors: Ellingsen, Olav

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

An artificial gland for implantation in the human body. Abstract An artificial gland for implantation in the human body and comprising a medicament reservoir intended for being filled with a medicament solution by the aid of a syringe said reservoir, via a passage being connect-, ted with a casing the wall of which casing is completely or partly comprised of a semipermeable membrane that causes changes of pressure by osmosis for delivery of a medicament.

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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 June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.
FiledNovember 21, 1986
GrantedJune 23, 1992
Term endedJune 23, 2009
Patent numberCA 1303798 C
Classification (IPC)A61M1/00 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 21, 1986Patent grantedJune 23, 1992Term endedJune 23, 2009

Sources & verification

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