Bedrock exploration system using transient electromagnetic measurements
CA 2078766 C · Owner: Strack, Kurt Martin · Inventors: Strack, Kurt Martin; Ruter, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the bedrock exploration system proposed transients, generated as sudden changes in a transmission stream are transmitted into the bedrock by a transmitter the induced, currents thus produced being measured by several receiver units and the measured values passed to a central unit. The invention calls for the measured values obtained from the receiver units to be digitized and stored at the measurement points and for the, central unit to be linked with the measurement points by a telemetry link by means of which data from the data stores in the receiver units can be successively passed on to the central unit.
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 20, 1991 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 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.