Patent US3669679A successfully refreshed from Google Patents.
US3669679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Green bean decaffeination employing fluorinated hydrocarbons
Assignee: General Foods Corp
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Filing: 1970-04-24
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Granted: 1972-06-13
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Expires: 1990-04-24
Abstract
Abstract DECAFFEINATION OF GREEN COFFEE IS ACHIEVED BY EXTRACTION WITH FLUORINATED HYDROCARBONS.
Inventors
- 👤 Hans P Panzer
- 👤 Robert S Yare
- 👤 Malcolm R Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:11
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/20; A23F5/206
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |