US3523138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of marigold petal meal to obtain a xanthophyll product
Assignee: Eastman Kodak Co
•
Filing: 1965-03-01
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Granted: 1970-08-04
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Peter M Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:54
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/24; A; A23; A23K; A23K20/00; A23K20/10; A23K20/179; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2394278A
Cited
US3069443A
Cited
US3258467A
Cited
US3333962A
Cited
US3311656A
Cited
US3274072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |