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Expired Canadian patentCanada

A bio-enhancer

CA 2240994 C · Owner: Henderson, Garth M. · Inventors: Henderson, Garth M.

CIPO record

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

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Abstract From the Canadian patent

There is disclosed a bio-enhancing composition comprising a carbohydrate and saponin, preferably comprising yucca extract for the acceleration of , bacterial metabolism. This is particularly useful in the acceleration of bacterial metabolism in the breakdown of organic waste. There is also provided a method of stimulating microorganism metabolism and the use of the composition for such stimulation.

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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 January 10, 1997 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 10, 1997
GrantedMay 28, 2002
Term endedJanuary 10, 2017
Patent numberCA 2240994 C
Classification (IPC)C12N1/38 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 10, 1997Patent grantedMay 28, 2002Term endedJan 10, 2017

Sources & verification

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