Iontophoresis device and drug unit
CA 2316196 A1 · Owner: Kuribayashi, Mitsuru · Inventors: Koga, Nobuhiro; Maeda, Hiroyuki; Higo, Naruhito
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An iontophoresis device suitably applied for effective utilization of drug held by a drug carrier. A backing layer (4) is provided with a donor electrode printed portion (6) and a reference electrode printed portion (7). A peripheral portion is provided with an adhesive film (3) for fixing a pharmaceutical to an intended portion. The electrode printed portions (6 7) , are connected to a current sending portion (Ia) through a conductive snap connector (Id). A donor electrode side conductive layer (11) disposed on the side of the donor electrode printed portion (6) is removably attached with a drug carrier (14). The drug carrier (14) is given a drug diffusion prevention treatment (30).
Read the whole patent
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
- Filed December 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.