US2933395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a decaffeinated soluble coffee extract
Assignee: General Foods Corp
•
Filing: 1956-12-12
•
Granted: 1960-04-19
•
Expires: 1976-12-12
Abstract
No abstract record available.
Inventors
- 👤 Irwin L Adler
- 👤 Jr Ernest L Earle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:16
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/20; A23F5/22; A23F5/226; A23F5/46; A23F5/48; A23F5/50; A23F5/505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS FOR THE DECAFFEINATION OF THE AQUEOUS EXTRACT OF ROASTED COFFEE WHICH COMPRISES FLOWING SAID EXTRACT IN THE FORM OF A THIN FILM WHILE SUBJECTING IT TO TEMPERATURES AND PRESSURES SUFFICIENT TO EVAPORATE AND THEREBY STRIP VOLATILE FLAVOR AND AROMA CONSTITUENTS THEREFROM, CONDENSING AND COLLECTING SAID CONSTITUENTS, EXTRACTING CAFFEINE FROM THE STRIPPED EXTRACT BY CONTACTING IT WITH A WATER-IMMISCIBLE ORGANIC SOLVENT FOR CAFFEINE UNTIL SUBSTANTIAL QUANTITIES OF THE CAFFEINE HAVE BEEN REMOVED FROM THE EXTRACT, SEPARATING SAID DECAFFEINATED EXTRACT FROM THE CAFFEINE-LADEN SOLVENT, AND INCORPORATING SAID COLLECTED VOLATILE FLAVOR AND AROMA CONSTITUENTS INTO THE DECAFFEINATED EXTRACT TO PRODUCE SOLUBLE DECAFFEINATED COFFEE.
Claim 2
Dependent Claim
102 words
A PROCESS FOR THE DECAFFEINATION OF THE AQUEOUS EXTRACT OF ROASTED COFFEE WHICH COMPRISES FLOWING SAID EXTRACT IN THE FORM OF A THIN FILM WHILE SUBJECTING IT TO TEMPERATURES AND PRESSURES SUFFICIENT TO EVAPORATE AND THEREBY STRIP VOLATILE FLAVOR AND AROMA CONSTITUENTS THEREFROM, CONDENSING AND COLLECTING SAID CONSTITUENTS, EXTRACTING CAFFEINE FROM THE STRIPPED EXTRACT BY CONTACTING IT WITH A WATER-IMMISCIBLE ORGANIC SOLVENT FOR CAFFEINE UNTIL SUBSTANTIAL QUANTITIES OF THE CAFFEINE HAVE BEEN REMOVED FROM THE EXTRACT, SEPARATING SAID DECAFFEINATED EXTRACT FROM THE CAFFEINE-LADEN SOLVENT, AND INCORPORATING SAID COLLECTED VOLATILE FLAVOR AND AROMA CONSTITUENTS INTO THE DECAFFEINATED EXTRACT TO PRODUCE SOLUBLE DECAFFEINATED COFFEE.
References Cited (Backward Citations)
US1123827A
Cited
GB397323A
Cited
US2472121A
Cited
US2542119A
Cited
US2563233A
Cited
US2802739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |