Amplifier circuit with a programmable configuration
CA 2231789 C · Owner: Anadigm Limited · Inventors: Macbeth, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An amplifier circuit having a programmable configuration which is selectable by a user. The amplifier circuit includes a pair of two-input differential input circuits. Each two-input differential input circuit has first and second input terminals wherein the first input terminal of the first two-input differential circuit is connected to a first circuit input and the first input terminal of the second two-input differential circuit is connected to a second circuit input. The amplifier also includes programmable circuitry for selectively connecting the second input terminals of the first and second two-input differential circuits to either second or third circuit inputs respectively, or to …
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 September 6, 1996 and granted February 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2018.
- 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.