Patent US2515730A successfully refreshed from Google Patents.
US2515730A
Expired / Lapsed
US
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Coffee extraction process
Assignee: American Home Foods Inc
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Filing: 1947-10-24
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Granted: 1950-07-18
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Ornfelt John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:56
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/26; A23F5/262
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN A COFFEE EXTRACTION PROCESS IN WHICH GROUND ROASTED COFFEE IS EXTRACTED IN A SERIES OF STAGES WITH WATER AT AN ELEVATED TEMPERATURE IN THE RANGE OF 125*-150*C. TO PRODUCE A HIGHLY CONCENTRATED COFFEE EXTRACT, THE FURTHER STEP OF USING SAID EXTRACT IN THE APPROXIMATE TEMPERATURE RANGE 25*-15*C. TO EXTRACT UNEXTRACTED GROUND ROASTED COFFEE.
Claim 2
Dependent Claim
54 words
IN A COFFEE EXTRACTION PROCESS IN WHICH GROUND ROASTED COFFEE IS EXTRACTED IN A SERIES OF STAGES WITH WATER AT AN ELEVATED TEMPERATURE IN THE RANGE OF 125*-150*C. TO PRODUCE A HIGHLY CONCENTRATED COFFEE EXTRACT, THE FURTHER STEP OF USING SAID EXTRACT IN THE APPROXIMATE TEMPERATURE RANGE 25*-15*C. TO EXTRACT UNEXTRACTED GROUND ROASTED COFFEE.
References Cited (Backward Citations)
US617322A
Cited
US1393045A
Cited
US1687112A
Cited
US1891383A
Cited
US2324526A
Cited
US2333027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |