Cvt transient filter
CA 2373656 C · Owner: Asaro, Vince · Inventors: Asaro, Vince; Kasztenny, Bogdan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two-stage filter (20) for a circuit protection device. The filter includes a first filtering device (22) connected to receive an input signal v the first , filtering device (22) generating an intermediate signal v1 (1), where k is a , sample index and h0...h20 are first filter coefficients. A second filtering device (24) filters the intermediate signal to generate an output signal v2 (2), where g0...g74 are second filter coefficients. A Fourier algorithm is applied to the output signal to generate a control signal for the circuit protection device.
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 21, 2001 and granted November 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2023.
- 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.