Patent US4824686A successfully refreshed from Google Patents.
US4824686A
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Antimicrobial additives for compound animal foodstuffs
Assignee: Verdugt BV
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Filing: 1988-03-29
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Granted: 1989-04-25
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Expires: 2008-03-29
Abstract
Abstract The present invention relates to animal feed preservative compositions containing a binary blend of formic acid and propionic acid, the amount of propionic acid in the blend being from 1-25% w/w of the total blend. Surprisingly, the proposed blend is more effective at controlling salmonella, especially in poultry, than formic acid when used alone.
Inventors
- 👤 Michael Dunn
- 👤 David A. Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:21
CPC Classifications
A; A23; A23K; A23K30/00; Y; Y10; Y10S; Y10S424/00; Y10S424/08; Y10S426/00; Y10S426/805; Y10S426/807
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
37 words
A preservative composition for animal feedstuffs said composition comprising a binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10-23% w/w of the total blend.
Claim 2
Dependent Claim
37 words
A preservative composition for animal feedstuffs said composition comprising a binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10-23% w/w of the total blend.
Claim 3
Dependent Claim
17 words
A preservative composition according to claim 1 wherein the blend is used as an aqueous solution thereof.
Claim 4
Dependent Claim
25 words
A preservative composition according to claim 2 wherein said blend contains formic acid, propionic acid and water in a proportion of 68:20:12 respectively by weight.
Claim 5
Dependent Claim
24 words
A preservative composition according to claim 1 wherein the blend is used in a solid form whereby it is impregnated on a solid carrier.
Claim 6
Dependent Claim
32 words
A preservative composition according to claim 1 wherein said composition is applied to the feedstuff in an amount corresponding to 0.2-5% by weight of the blend based on the total feedstuff preserved.
Claim 7
Dependent Claim
57 words
A process for preserving an animal feed selected from pig feed, cattle feed and poultry feed, wherein a preservative composition comprising a binary blend of formic acid and propionic acid according to claim 1 is applied to said feed in an amount corresponding to 0.1 to 10% w/w of the blend based on the total feed preserved.
Claim 8
Dependent Claim
73 words
A preserved animal feed composition comprising an animal feedstuff containing a salmonella infection inhibitor, said inhibitor comprising a binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10 to 23% w/w of the total blend, and wherein said inhibitor is applied to the feedstuff in an amount corresponding to 0.2-5% by weight of the blend based on the total feedstuff preserved.
Claim 9
Dependent Claim
73 words
A preserved animal feed composition comprising an animal feedstuff containing a salmonella infection inhibitor, said inhibitor comprising a binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10 to 23% w/w of the total blend, and wherein said inhibitor is applied to the feedstuff in an amount corresponding to 0.2-5% by weight of the blend based on the total feedstuff preserved.
Claim 10
Dependent Claim
12 words
The preserved composition of claim 7, which is a poultry feed composition.
Claim 11
Dependent Claim
84 words
A process for preserving an animal feed selected from pig feed, cattle feed and poultry feed against salmonella infection comprising applying to said feed a salmonella infection inhibitor comprising a binary blend of formic acid and propionic acid in an amount corresponding to 0.2 to 5% w/w of the blend based on the total feed preserved, said binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10-23% w/w of the total blend.
Claim 12
Dependent Claim
84 words
A process for preserving an animal feed selected from pig feed, cattle feed and poultry feed against salmonella infection comprising applying to said feed a salmonella infection inhibitor comprising a binary blend of formic acid and propionic acid in an amount corresponding to 0.2 to 5% w/w of the blend based on the total feed preserved, said binary blend of formic acid and propionic acid characterised in that the amount of propionic acid in the blend is from 10-23% w/w of the total blend.
Claim 13
Dependent Claim
12 words
The process of claim 9, wherein the animal feed is poultry feed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |