Patent US2602762A successfully refreshed from Google Patents.
US2602762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the extraction of beet sugar
Assignee: Superior Sugar Extraction Inc
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Filing: 1950-02-27
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Granted: 1952-07-08
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Expires: 1970-02-27
Abstract
No abstract record available.
Inventors
- 👤 Langen Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:57
CPC Classifications
C; C13; C13B; C13B10/00; C13B10/08; C13B10/10; C13B10/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A PROCESS FOR EXTRACTING SUBSTANCES FROM A RAW MATERIAL WHEREIN SAID EXTRACTION IS CARRIED IN A VERTICAL EXTRACTION TOWER INTO WHICH THE RAW MATERIAL IS INTRODUCED AT THE UPPER END THEREOF AND IS MOVED THROUGH THE TOWER BY A ROTATING CONVEYOR WORM IS A DIRECTION COUNTERCURRENT TO THE FLOW OF AN EXTRACTING LIQUID IN SAID TOWER WITH RAW OF AN EXTRACTING LIQUID IN SAID TOWER WITH ING DISCHARGED FROM SAID TOWER AT THE UPPER END THEREOF CHARACTERIZED BY CONTINUOUSLY INTRODUCING RAW MATERIALS CONTAINING THE SUBSTANCE TO BE EXTRACTED UNDER PRESSURE AND AT A UNIFORM RATE
Claim 2
Dependent Claim
96 words
IN A PROCESS FOR EXTRACTING SUBSTANCES FROM A RAW MATERIAL WHEREIN SAID EXTRACTION IS CARRIED IN A VERTICAL EXTRACTION TOWER INTO WHICH THE RAW MATERIAL IS INTRODUCED AT THE UPPER END THEREOF AND IS MOVED THROUGH THE TOWER BY A ROTATING CONVEYOR WORM IS A DIRECTION COUNTERCURRENT TO THE FLOW OF AN EXTRACTING LIQUID IN SAID TOWER WITH RAW OF AN EXTRACTING LIQUID IN SAID TOWER WITH ING DISCHARGED FROM SAID TOWER AT THE UPPER END THEREOF CHARACTERIZED BY CONTINUOUSLY INTRODUCING RAW MATERIALS CONTAINING THE SUBSTANCE TO BE EXTRACTED UNDER PRESSURE AND AT A UNIFORM RATE
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |