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Expired Canadian patentCanada

Miniature apparatus for delivering electromagnetic energy into a solution

CA 2430299 C · Owner: Darragh, Austin · Inventors: Darragh, Austin; Darragh, David

CIPO record

Overview

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

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Abstract From the Canadian patent

Apparatus for delivering electromagnetic energy into a solution comprises a power source (11), an oscillator crystal (12) and an antenna (14) for transmitting the generated signal into the solution. The solution is water which is used to irrigate plants and flowers or which can be used for consumption by humans or animals or for use in domestic applications.

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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 November 29, 2001 and granted June 21, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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.
FiledNovember 29, 2001
GrantedJune 21, 2011
Term endedNovember 29, 2021
Patent numberCA 2430299 C
Classification (IPC)B01J19/12 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 29, 2001Patent grantedJune 21, 2011Term endedNov 29, 2021

Sources & verification

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