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Expired Canadian patentCanada

Transdermal drug delivery device

CA 1324419 C · Owner: Gross, Joseph · Inventors: Reller, Chana; Gross, Joseph

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 iontophoretic device is taught which is positionable on skin or a recipient. An insulating member includes therethrough at least one reservoir containing a drug between outer and inner (recipientwise) electrodes adhered to surface of the insulating member. The inner elctrode preferably is spaced from a rim of the drug reservoir by the same distance as the depth and width of the reservoir,the electrodes are connected to field generating means which draw the ionic drug into the patient and outward from the rim of the reservoir.

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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 November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 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.
FiledApril 13, 1989
GrantedNovember 16, 1993
Term endedNovember 16, 2010
Patent numberCA 1324419 C
Classification (IPC)A61N1/30 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 13, 1989Patent grantedNov 16, 1993Term endedNov 16, 2010

Sources & verification

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