US3620034A
Expired / Lapsed
US
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Multi-stage freeze concentration of coffee
Assignee: Struthers Patent Corp
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Filing: 1967-07-11
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Granted: 1971-11-16
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Expires: 1987-07-11
Abstract
Abstract IN A STAGED FREEZE CONCENTRATION PROCESS FOR CONCENTRATING COFFEE SOLUTION, ICE CRYSTALS ARE REMOVED FROM THE SYSTEM AFTER THE FIRST STAGE FROM LESS CONCENTRATED COFFEE SOLUTION. ICE CRYSTALS REMOVED FROM THE MORE CONCENTRATED COFFEE SOLUTION IN THE SECOND STAGE ARE ADDED TO INCOMING FEED. COFFEE SOLUTION FROM WHICH ICE CRYSTALS ARE SEPARATED IN THE SECOND STAGE IS REMOVED FROM THE SYSTEM AS A PRODUCT.
Inventors
- 👤 Neophytos Ganiaris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:47
CPC Classifications
B; B01; B01D; B01D9/00; B01D9/02; B01D9/04; A; A23; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |