Iontophoretic delivery device
CA 2079462 C · Owner: Mcnichols, Larry A. · Inventors: Badzinski, John D.; Mcnichols, Larry A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically powered iontophoretic delivery device is provided. The device includes a pair of electrode assemblies (41 43) and a source of electrical power (30) connected thereto. Circuit means (60) are provided including an activation circuit (62) and a power generating circuit (70). Before use neither the power generating , circuit (70) nor the activation circuit (62) draw current from the power source (30). When the device is placed on the body (50) and electrical contact is established between the two electrode assemblies (41, 43), the activation circuit (62) is closed causing the power generating circuit (70) to be activated thereby, activating the device. The circuit means …
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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
- Filed March 22, 1991 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2013.
- 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.