Patent US2976158A successfully refreshed from Google Patents.
US2976158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of instant coffee
Assignee: Individual
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Filing: 1959-07-24
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Granted: 1961-03-21
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Expires: 1979-07-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur I Morgan
- 👤 John M Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:31
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR PREPARING A DEHYDRATED PRODUCT FROM A LIQUID COFFEE CONCENTRATE WHICH COMPRISES INCORPORATING INTO THE CONCENTRATE A NON-TOXIC GAS AND A MINOR PROPORTION OF A FOAM STABILIZING AGENT TO FORM A STABLE FOAM, SPREADING THE FOAM INTO A RELATIVELY THIN LAYER, CONTACTING THE LAYER OF FOAM, AT ATMOSPHERIC PRESSURE, WITH HOT GASEOUS MEDIUM HAVING A TEMPERATURE, WITHIN THE RANGE ABOUT FROM 120 TO 220*F., INSUFFICIENTLY HIGH TO CAUSE THE FOAM TO SUBSTANTIALLY DECREASE IN VOLUME AND CONTINUING SAID CONTACT OF THE HOT GASEOUS MEDIUM WITH THE FOAM UNTIL THE FOAM IS DEHYDRATED TO A SOLID, POROUS, READILY REHYDRATABLE PRODUCT.
Claim 2
Dependent Claim
101 words
A PROCESS FOR PREPARING A DEHYDRATED PRODUCT FROM A LIQUID COFFEE CONCENTRATE WHICH COMPRISES INCORPORATING INTO THE CONCENTRATE A NON-TOXIC GAS AND A MINOR PROPORTION OF A FOAM STABILIZING AGENT TO FORM A STABLE FOAM, SPREADING THE FOAM INTO A RELATIVELY THIN LAYER, CONTACTING THE LAYER OF FOAM, AT ATMOSPHERIC PRESSURE, WITH HOT GASEOUS MEDIUM HAVING A TEMPERATURE, WITHIN THE RANGE ABOUT FROM 120 TO 220*F., INSUFFICIENTLY HIGH TO CAUSE THE FOAM TO SUBSTANTIALLY DECREASE IN VOLUME AND CONTINUING SAID CONTACT OF THE HOT GASEOUS MEDIUM WITH THE FOAM UNTIL THE FOAM IS DEHYDRATED TO A SOLID, POROUS, READILY REHYDRATABLE PRODUCT.
References Cited (Backward Citations)
US1250427A
Cited
US2788276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |