US2915399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacture of soluble coffee
Assignee: General Foods Corp
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Filing: 1956-08-17
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Granted: 1959-12-01
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Expires: 1976-08-17
Abstract
No abstract record available.
Inventors
- 👤 Guggenheim Herbert
- 👤 Roger M Stinchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:18
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/26; A23F5/262
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A COFFEE EXTRACTION PROCESS FOR PRODUCING CONCENTRATED COFFEE BY CONTACTING PROGESSIVELY FRESHER COFFEE GROUNDS COUNTERCURRENTLY WITH AN AQUEOUS EXTRACTION LIQUOR WHICH COMPRISES PASSING THE EXTRACTION LIQUOR THROUGH A HOT SECTION OF AN EXTRACTION TRAIN CONTAINING NEARLY SPENT GROUNDS AT THE LIQUOR INLET END, SAID LIQUOR BEING ADMITTED THERETO AND MAINTAINING THERIN AT TEMPERATURE WITHIN THE RANGE OF 288*F.-320*F., WITHDRAWING PARTIALLY CONCENTRATED EXTRACTION LIQUOR FROM SAID HOT SECTION, AND COMPLETING THE EXTRACTION BY PASSONG SAID LIQUOR THROUGH A COLD SECTION CONTAINING FRESH COFFEE GROUNDS AT THE LIQUOR OUTLET END AND WHERIN THE TEMPERATURE OF SAID EXTRACTION LIQUOR DECREASES TO AN OUTLET TEMPERATURE OF ABOUT 175*F-200*F., THE FULLY CONCENTRATED EXTRACTION LIQUOR BEING WITHDRAWN FROM THE FRESH GROUNDS AT SAID OUTLET TEMPERATURE OF ABOUT 175*F.200%F.
Claim 2
Dependent Claim
122 words
A COFFEE EXTRACTION PROCESS FOR PRODUCING CONCENTRATED COFFEE BY CONTACTING PROGESSIVELY FRESHER COFFEE GROUNDS COUNTERCURRENTLY WITH AN AQUEOUS EXTRACTION LIQUOR WHICH COMPRISES PASSING THE EXTRACTION LIQUOR THROUGH A HOT SECTION OF AN EXTRACTION TRAIN CONTAINING NEARLY SPENT GROUNDS AT THE LIQUOR INLET END, SAID LIQUOR BEING ADMITTED THERETO AND MAINTAINING THERIN AT TEMPERATURE WITHIN THE RANGE OF 288*F.-320*F., WITHDRAWING PARTIALLY CONCENTRATED EXTRACTION LIQUOR FROM SAID HOT SECTION, AND COMPLETING THE EXTRACTION BY PASSONG SAID LIQUOR THROUGH A COLD SECTION CONTAINING FRESH COFFEE GROUNDS AT THE LIQUOR OUTLET END AND WHERIN THE TEMPERATURE OF SAID EXTRACTION LIQUOR DECREASES TO AN OUTLET TEMPERATURE OF ABOUT 175*F-200*F., THE FULLY CONCENTRATED EXTRACTION LIQUOR BEING WITHDRAWN FROM THE FRESH GROUNDS AT SAID OUTLET TEMPERATURE OF ABOUT 175*F.200%F.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 |