Contour-clamped homogeneous electric field generator
CA 1297152 C · Owner: Bio-Rad Laboratories, Inc. · Inventors: Ragsdale, Charles W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A contour-clamped homogeneous electric field generator having a plurality of electrodes each elec-, trode being connected to a node which is maintained at a prescribed electrical potential. The electrical potential at the node is maintained by sourcing current into or sinking current away from the node when the voltage at the node varies. The current source comprises a first transistor having an input terminal connected to a voltage/current supply and an output terminal connected to the node. The current sink comprises a second transistor having an input terminal coupled to the node, and an output terminal coupled to the voltage/current supply ground. To control the operation of the first …
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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
- Granted March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.