Patent Yard Sign in
Expired Canadian patentCanada

Mixed cultures for improved fermentation and aerobic stability of silage

CA 2436823 C · Owner: Harman, Elizabeth K. · Inventors: Dennis, Scott; Harman, Elizabeth K.; Smiley, Brenda

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Methods and compositions for treatment of animal feed or silage by treatment with a mixed culture of heterofermentive lactic acid bacteria and homofermentive lactic acid bacteria of the proper ratio. Bacterial strains for such treatment are also provided. The heterofermentative lactic acid bacteria are selected from Lactobacillus buchneri or Lactobacillus brevis the , homofermentative lactic acid bacteria is Lactobacillus plantarum. The ratio of viable cells of the homofermentative to heterofermentative lactic acid bacteria ranges from 1:5 to 1:15. Cultures of Lactobacillus buchneri provided are ATCC PTA-2493, ATCC PTA-2494 or ATCC PTA-2495.

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 October 31, 2001 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 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.
FiledOctober 31, 2001
GrantedApril 8, 2014
Term endedOctober 31, 2021
Patent numberCA 2436823 C
Classification (IPC)C12N1/20

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 31, 2001Patent grantedApril 8, 2014Term endedOct 31, 2021

Sources & verification

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