US3681082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigmentation of egg yoke
Assignee: F Hoffmann La Roche AG
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Filing: 1970-01-15
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Granted: 1972-08-01
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Expires: 1990-01-15
Abstract
Abstract FEED OR DRINKING WATER COMPOSITIONS WHICH PROVIDE PERMANENT PIGMENTATION OF EGG YOLKS AND INCREASED VITAMIN A SOURCES FOR POULTRY ARE DISCLOSED. THE FEED COMPOSITIONS CONTAIN CITRANAXANTHIN AS WELL AS CAROTENOIDS WHICH IMPART A YELLOW COLOR TO THE EGG YOLK.
Inventors
- 👤 Ulrich Schwieter
- 👤 Hans Thommen
- 👤 Harald Weiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |