Patent US2472881A successfully refreshed from Google Patents.
Patent US3740230A successfully refreshed from Google Patents.
US3740230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for decaffeinating coffee
Assignee: General Foods Corp
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Filing: 1971-04-29
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Granted: 1973-06-19
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Expires: 1991-04-29
Abstract
Abstract A DECAFFEINATED COFFEE HAVING QUALITY IMPROVEMENT IS EFFECTED BY REMOVING THE GREEN COFFEE FLAVORS AND AROMAS PRIOR TO INTRODUCING THE COFFEE INTO ONE END OF A COUNTER CURRENT EXTRACTION ZONE FOR WATER EXTRACTING THE CAFFEINE FROM THE COFFEE AND THEN ADDING BACK THE FLAVORS AND AROMAS TO THE DECAFFEINATED COFFEE AT THE OTHER END OF THE COUNTER CURRENT EXTRACTION ZONE PRIOR TO DISCHARGING THE DECAFFEINATED COFFEE FROM THE EXTRACTION ZONE.
Inventors
- 👤 J Mahlmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/46; A23F5/48; A23F5/486; A23F5/20; A23F5/208
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |