Patent US3773745A successfully refreshed from Google Patents.
US3773745A
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Nutrient protein from keratinaceous material by extraction with dimethylformamide
Assignee: Athlon Corp
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Filing: 1971-07-30
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Granted: 1973-11-20
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Expires: 1991-07-30
Abstract
Abstract AVIAN FEATHERS, PARTICULARLY CHICKEN FEATHERS ARE SOLUBILIZED BY TREATMENT WITH N,N-DIMETHYLFORMAMIDE OR AN AQUEOUS SOLUTION THEREOF TO YIELD A NUTRIENT PROTEIN COMPOSITION OR ALTERATION WHICH IS SUITABLE FOR USE AS A FOOD SUPPLEMENT AND AS AN INGREDIENT IN FOOD PRODUCTS, SUCH AS BAKED GOODS, FLOUR, CAKE MIXES, CONFECTIONERY, SOUPS, CEREALS AND NOODLE OR PASTA PRODUCTS.
Inventors
- 👤 W Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |