US2672428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of sugar
Assignee: Virginia Smelting Co
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Filing: 1949-05-26
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Granted: 1954-03-16
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Expires: 1969-05-26
Abstract
No abstract record available.
Inventors
- 👤 Sklar Alfred Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:33
CPC Classifications
C; C13; C13B; C13B10/00; C13B10/14; C13B20/00; C13B20/08; C13B20/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A PROCESS FOR THE MANUFACTURE OF RAW SUGAR FROM SUGAR CANE IN WHICH SUGAR CONTAINING JUICES ARE EXPRESSED FROM CANE, DEFECATED, THEN EVAPORATED TO A THICK SYRUP AND SUGAR CRYSTALLIZED FROM THE THICK SYRUP THE IMPROVEMENT COMPRISING THE ADDITION OF SODIUM HYDROSULFITE TO THE SUGAR JUICE AT ANY STAGE SUBSEQUENT TO GRINDING OF THE CANE AND PRIOR TO THE DISCHARGE FROM THE EVAPORATORS.
Claim 2
Dependent Claim
64 words
IN A PROCESS FOR THE MANUFACTURE OF RAW SUGAR FROM SUGAR CANE IN WHICH SUGAR CONTAINING JUICES ARE EXPRESSED FROM CANE, DEFECATED, THEN EVAPORATED TO A THICK SYRUP AND SUGAR CRYSTALLIZED FROM THE THICK SYRUP THE IMPROVEMENT COMPRISING THE ADDITION OF SODIUM HYDROSULFITE TO THE SUGAR JUICE AT ANY STAGE SUBSEQUENT TO GRINDING OF THE CANE AND PRIOR TO THE DISCHARGE FROM THE EVAPORATORS.
References Cited (Backward Citations)
US281188A
Cited
GB189619815A
Cited
GB190316760A
Cited
US1016762A
Cited
GB191119858A
Cited
GB172272A
Cited
FR628128A
Cited
FR709264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |