Patent US2826504A successfully refreshed from Google Patents.
US2826504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the flavor of soluble solid coffee extract
Assignee: Wyeth LLC
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Filing: 1955-03-18
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Granted: 1958-03-11
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Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Fletcher A Chase
- 👤 Lee Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:53
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/36; A23F5/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN THE PRODUCTION OF SOLUBLE SOLID COFFEE EXTRACT IN WHICH IS COCENTRATED AQUEOUS INFUSION OF GROUND ROASTED COFFEE IS FORMED, THE IMPROVEMENT WHICH COMPRISES: DISSOLVING IN THE CONCENTRATED COFFEE INFUSION A COMESTIBLE SOLUBLE CARBOHYDRATE OF LOW SWEETNESS IN AN AMOUNT IN THE RANTE 25 TO 150 PERCENT OF THE COFFEE SOLUBLES IN THE INFUSION, EVAPORATING THE INFUSION TO SUBSTANTIAL DRYNESS, HEAT-TREATING THE RESIDUE FOR A PERIOD IN THE RANGE 3-5 HOURS AT A TEMPERATURE IN THE RANGE 135*-225*C., THE SHORTER TIME BEING FOR THE HIGHER TEMPERATURE AND THE LONGER TIME FOR THE LOWER TEMPERATURE, THUS CONVERTING THE RESIDUE TO AN EXPANDED POROUS THERMOPLASTIC MASS, AND THEREAFTER COOLING THE HOT MASS TO A POROUS FRIABLE SOLID CONSTITUTING A SOLUBLE SOLID COFFEE EXTRACT HAVING IMPROVED AROMA AND TASTE BODY.
Claim 2
Dependent Claim
127 words
IN THE PRODUCTION OF SOLUBLE SOLID COFFEE EXTRACT IN WHICH IS COCENTRATED AQUEOUS INFUSION OF GROUND ROASTED COFFEE IS FORMED, THE IMPROVEMENT WHICH COMPRISES: DISSOLVING IN THE CONCENTRATED COFFEE INFUSION A COMESTIBLE SOLUBLE CARBOHYDRATE OF LOW SWEETNESS IN AN AMOUNT IN THE RANTE 25 TO 150 PERCENT OF THE COFFEE SOLUBLES IN THE INFUSION, EVAPORATING THE INFUSION TO SUBSTANTIAL DRYNESS, HEAT-TREATING THE RESIDUE FOR A PERIOD IN THE RANGE 3-5 HOURS AT A TEMPERATURE IN THE RANGE 135*-225*C., THE SHORTER TIME BEING FOR THE HIGHER TEMPERATURE AND THE LONGER TIME FOR THE LOWER TEMPERATURE, THUS CONVERTING THE RESIDUE TO AN EXPANDED POROUS THERMOPLASTIC MASS, AND THEREAFTER COOLING THE HOT MASS TO A POROUS FRIABLE SOLID CONSTITUTING A SOLUBLE SOLID COFFEE EXTRACT HAVING IMPROVED AROMA AND TASTE BODY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |