US4223045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservative for animal feeds
Assignee: BASF SE
•
Filing: 1979-01-25
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Granted: 1980-09-16
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Expires: 1999-01-25
Abstract
Abstract Preservative for feeds which contains a liquid mixture of ammonium propionate, propylene glycol and water. The molar ratio of ammonium propionate to propylene glycol is from 1:0.1 to 1:0.7. The liquid mixture contains from 20 to 30 weight percent water, 44.2 to 64.6 weight percent ammonium propionate and 5.4 to 29.5 weight percent propylene glycol. Adequate preservation is ensured by the addition of from 0.3 to 3 wt % of the liquid mixture to the feed.
Inventors
- 👤 Fritz Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:10
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23K; A23K30/00; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
43 words
A preservative for animal feeds consisting essentially of a liquid mixture of ammonium propionate, propylene glycol and water, having from 20 to 30 weight percent water, from 44.2 to 64.6 weight percent ammonium propionate and from 5.4 to 29.5 weight percent propylene glycol.
Claim 2
Dependent Claim
43 words
A preservative for animal feeds consisting essentially of a liquid mixture of ammonium propionate, propylene glycol and water, having from 20 to 30 weight percent water, from 44.2 to 64.6 weight percent ammonium propionate and from 5.4 to 29.5 weight percent propylene glycol.
Claim 3
Dependent Claim
33 words
A process for preserving animal feeds, comprising treating said animal feeds with from 0.3 to 3 percent by weight, based on the weight of the feed, of the liquid mixture of claim 1.
References Cited (Backward Citations)
US3202514A
Cited
DE1692505A1
Cited
US3732112A
Cited
DE2355441A1
Cited
US3899588A
Cited
US3982026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |