Device and method for identifying and quantifying layered substances
CA 2080067 C · Owner: Brobeck, Chris · Inventors: Brobeck, Chris; Marshall, Chris; Inkpen, Stuart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for identifying and measuring in real time substances overlying a surface comprises a plurality of electrodes a temperature sensor, an, electrode control system connected to the plurality of electrodes for defining an electric, field, an amplitude and phase measurement system connected to the plurality of electrodes and to the electrode control system for measuring a plurality of currents, responsive to the electric field and converting the currents to a measurement set and, computer for storing a map comprising a partition of a vector space of predetermined, characteristics of substances into regions of profiles corresponding to the substances, which could be overlying …
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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 October 7, 1992 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2014.
- 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.