Patent US3783099A successfully refreshed from Google Patents.
US3783099A
Expired / Lapsed
US
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Xanthophyllic extraction process
Assignee: Purina Mills LLC
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Filing: 1971-11-08
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Granted: 1974-01-01
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Expires: 1991-11-08
Abstract
Abstract A PROCESS FOR THE EXTRACTION OF XANTHOPHYLLIC PIGMENTS FROM PLANTS IS PROVIDED WHICH INCLUDES THE HYDROLYSIS OF THE PLANT CELLULOSIC MATERIAL WITH A CELLULASE ENZYME.
Inventors
- 👤 R Matoushek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:41
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185; A61K36/28
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |