Electric mammograph
CA 2402234 A1 · Owner: Cherepenin, Vladimir Alexeevich · Inventors: Cherepenin, Vladimir Alexeevich; Korjenevsky, Alexandr Vladimirovich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The electric mammograph is an electrical impedance tomograph device for obtaining three-dimensional images of the conductivity distribution in biological tissues. A planar array of electrodes (1) is put in contact with the tissues of interest. An AC source (4) is connected to a single remotely attached electrode (5, 7) and to one of the planar array electrodes (1). Potential differences between the at rest electrodes in the planar array and a second remote at rest electrode (7, 5) are measured. The images are reconstructed using a modified back projection method.
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 March 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2022.
- 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.