US2915403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacture of soluble coffee
Assignee: General Foods Corp
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Filing: 1956-06-27
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Granted: 1959-12-01
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Expires: 1976-06-27
Abstract
No abstract record available.
Inventors
- 👤 William P Clinton
- 👤 Guggenheim Herbert
- 👤 Kraut Theodore
- 👤 Roger M Stinchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:35
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/26; A23F5/262
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A COFFEE EXTRACTION PROCESS FOR PRODUCING CONCENTRATED COFFEE EXTRACTED BY CONTACTING COFFEE GROUNDS COUNTERCURRENTLY WITH AN AQUEOUS EXTRACTION LIQUOR WHICH COMPRISES EXTRACTING HOT NEARLY SPENT COFFEE GROUNDS IN A COLD SECTION OF ANEXTRACTION TRAIN WITH AQUEOUS EXTRACTION LIQUOR ADMITTED THERETO AT ABOUT 220*FF. TO 270* F. WHEREBY THE TEMPERATURE OF SAID LIQUOR IS RAISED, WITHDRAWING EXTRACTION LIQUOR FROM SAID COLD SECTION AT TEMPERATURE HIGHER THAN SAID INLET TEMPERATURE, HEATING SAID WITHDRAWN LIQUOR TO TEMPERATURE ABOVE THE OUTLET TEMPERATURE OF THE COLD SECTION AND TO WITHIN THE RANGE OF 250* F.-315*F., CONTACTING SAID HEATED EXTRACTION LIQUOR AT THIS TEMPERATURE IN A HOT OF THE EXTRACTION TRAIN WITH COFFEE GROUNDS FRESHER THAN THOSE IN SAID COLD SECTION, WITHDRAWING EXTRACTION LIQUOR FROM SAID HOT SECTION, CONTACTING SAID WITHDRAWN EXTRACTION LIQUOR AT ABOUT 210*F.-270*F. IN A COOLING SECTION WITH COFFEE GROUNDS FRESHER THAN THOSE IN SAID HOT SECTION, AND WITHDRAWING FROMSAID COOLING SECTION CONCENTRATED EXTRACTION LIQUOR AT ABOUT 175*F.-200*F.
Claim 2
Dependent Claim
155 words
A COFFEE EXTRACTION PROCESS FOR PRODUCING CONCENTRATED COFFEE EXTRACTED BY CONTACTING COFFEE GROUNDS COUNTERCURRENTLY WITH AN AQUEOUS EXTRACTION LIQUOR WHICH COMPRISES EXTRACTING HOT NEARLY SPENT COFFEE GROUNDS IN A COLD SECTION OF ANEXTRACTION TRAIN WITH AQUEOUS EXTRACTION LIQUOR ADMITTED THERETO AT ABOUT 220*FF. TO 270* F. WHEREBY THE TEMPERATURE OF SAID LIQUOR IS RAISED, WITHDRAWING EXTRACTION LIQUOR FROM SAID COLD SECTION AT TEMPERATURE HIGHER THAN SAID INLET TEMPERATURE, HEATING SAID WITHDRAWN LIQUOR TO TEMPERATURE ABOVE THE OUTLET TEMPERATURE OF THE COLD SECTION AND TO WITHIN THE RANGE OF 250* F.-315*F., CONTACTING SAID HEATED EXTRACTION LIQUOR AT THIS TEMPERATURE IN A HOT OF THE EXTRACTION TRAIN WITH COFFEE GROUNDS FRESHER THAN THOSE IN SAID COLD SECTION, WITHDRAWING EXTRACTION LIQUOR FROM SAID HOT SECTION, CONTACTING SAID WITHDRAWN EXTRACTION LIQUOR AT ABOUT 210*F.-270*F. IN A COOLING SECTION WITH COFFEE GROUNDS FRESHER THAN THOSE IN SAID HOT SECTION, AND WITHDRAWING FROMSAID COOLING SECTION CONCENTRATED EXTRACTION LIQUOR AT ABOUT 175*F.-200*F.
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |