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Expired Canadian patentCanada

Bio-active frequency generator and method

CA 2227296 C · Owner: Fleming, Janet E. · Inventors: Fleming, Janet E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system (10) generates bio-active frequencies having a precision of 0.001 Hz for health science applications. A micro-controller (16) instructs a frequency synthesizer (12) to generate specific precise frequency signals. A user may select a specific frequency, a sequence of frequencies or a preprogrammed , series of frequencies using a keyboard (18). Alternatively an automatic , frequency selector (21) may scan the patient and automatically select appropriate frequencies for generation. Depending upon the specific frequency being generated, the system (10) gates signal ON or OFF for predetermined periods of time. A sound circuit (36) generates an auditory warning prior to signal …

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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 3, 1996 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 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.
FiledOctober 3, 1996
GrantedDecember 23, 2003
Term endedOctober 3, 2016
Patent numberCA 2227296 C
Classification (IPC)A61N1/18 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 3, 1996Patent grantedDec 23, 2003Term endedOct 3, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.