Patent US5794795A successfully refreshed from Google Patents.
US3597274A
Expired / Lapsed
US
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Starch manufacture from corn
Assignee: Grain Processing Corp
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Filing: 1970-03-02
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Granted: 1971-08-03
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Expires: 1990-03-02
Abstract
Abstract STARCH IS MANUFACTURED FROM CORN BY A PROCESS WHEREIN CORN KERNELS ARE FIRST SUBJECT TO CRACKING SO AS TO FRACTURE THE HULLS, THE CRACKED CORN IS THEN STEEPED IN AN AQUEOUS SULFUR DIOXIDE SOLUTION, A FLOURY STARCH PRODUCT IS THEN SEPARATED FROM THE STEEPED SLURRY, AND FURTHER STARCH IS RECOVERED FROM THE STEEPED MATERIAL FROM WHICH THE SAID FLOURY STARCH PRODUCT HAS BEEN REMOVED.
Inventors
- 👤 Donald Lee Gillenwater
- 👤 Gerald Bernard Pfundstein
- 👤 Allen Ross Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:36
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/04; C08B30/042; C08B30/044
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |