US3399061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving the color of freeze-dried coffee
Assignee: General Foods Corp
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Filing: 1965-03-29
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Granted: 1968-08-27
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 George J Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:21
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A PROCESS FOR PRODUCING FREEZE-DRIED COFFEE OF DARK COFFEE-LIKE COLOR HAVING A MUNSELL COLOR RATING OF BETWEEN 12.5, 2.5/4 AND 17.5, 5/6 WHICH COMPRISES SLOWLY COOLING COFFEE EXTRACT WITH AGITATION FROM ITS ICE POINT TO BELOW ITS EUTECTIC POINT OVER A PERIOD OF ABOUT 1530 MINUTES, TO THEREBY FORM A CRYSTALLINE STRUCTURE OF SUBSTANTIALLY PURE WATER ICE DISTRIBUTED IN A FROZEN MATRIX OF A EUTECTIC MIXTURE OF WATER, SAID WATER ICE HAVING A DENDRITIC FORM CHARACTERIZED BY NONPARALLEL MAIN STEMS, SMALLER EXTENDING BRANCHES FROM SAID MAIN STEMS AND AN ABSENCE OF DISCRETE ICE CRYSTALS OF NONDENDRITIC FORM IN THE EUTECTIC MIXTURE LOCATED BETWEEN SAID DENDRITIC ICE CRYSTALS, COFFEE SOLIDS AND AROMATICS; AND FREEZE-DRYING SAID FROZEN MATRIX TO A STABLE MOISTURE CONTENT.
Claim 2
Dependent Claim
121 words
A PROCESS FOR PRODUCING FREEZE-DRIED COFFEE OF DARK COFFEE-LIKE COLOR HAVING A MUNSELL COLOR RATING OF BETWEEN 12.5, 2.5/4 AND 17.5, 5/6 WHICH COMPRISES SLOWLY COOLING COFFEE EXTRACT WITH AGITATION FROM ITS ICE POINT TO BELOW ITS EUTECTIC POINT OVER A PERIOD OF ABOUT 1530 MINUTES, TO THEREBY FORM A CRYSTALLINE STRUCTURE OF SUBSTANTIALLY PURE WATER ICE DISTRIBUTED IN A FROZEN MATRIX OF A EUTECTIC MIXTURE OF WATER, SAID WATER ICE HAVING A DENDRITIC FORM CHARACTERIZED BY NONPARALLEL MAIN STEMS, SMALLER EXTENDING BRANCHES FROM SAID MAIN STEMS AND AN ABSENCE OF DISCRETE ICE CRYSTALS OF NONDENDRITIC FORM IN THE EUTECTIC MIXTURE LOCATED BETWEEN SAID DENDRITIC ICE CRYSTALS, COFFEE SOLIDS AND AROMATICS; AND FREEZE-DRYING SAID FROZEN MATRIX TO A STABLE MOISTURE CONTENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |