US3575709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning sugar crystals
Assignee: Bird Machine Co Inc
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Filing: 1968-08-20
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Granted: 1971-04-20
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Expires: 1988-08-20
Abstract
Abstract A METHOD OF TREATING A MAGMA OF SUGAR CRYSTALS IN SYRUP TO REMOVE IMPURITIES FROM THE CRYSTAL SURFACES IN WHICH THE CRYSTALS ARE SJUBECTED TO SCRUBBING IN THE MAGMA IN THE BOWL OF A CONTINOUS CENTRIFUGE, AND ARE THEN DRAINED AND FED OVER A ROTATING SCREEN ON WHICH THEY MAY BE WASHED
Inventors
- 👤 Francis X Ferney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:08
CPC Classifications
B; B04; B04B; B04B3/00; B04B3/04; B04B15/00; B04B15/12; C; C13; C13B; C13B30/00; C13B30/04; C13B30/06
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |