US3317346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of starch
Assignee: FMC Corp
•
Filing: 1964-07-24
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Granted: 1967-05-02
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Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Kibbel
- 👤 John J Juhasz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:55
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/18; C08B30/00; C08B30/12; C08B31/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF MODIFYING STARCH TO STABILIZE ITS PASTE VISCOSITY AND REDUCE ITS GELATION TENDENCY, COMPRISING PROVIDING AN AQUEOUS SLURRY CONTAINING 20 TO 50 PERCENT BY WEIGHT OF STARCH AND AN AMOUNT OF A DICHLORINATED CYANURIC COMPOUND TO PROVIDE 0.5 TO 5.0 PERCENT BY WEIGHT OF AVAILABLE CHLORINE BASED ON THE WEIGHT OF THE STARCH, SAID SLURRY HAVING A PH OF 8.0 TO 9,0, AND MAINTAINING SAID SLURRY FOR 2 TO 4 HOURS AT 90* TO 175* F. AND AT SAID PH OF 8.0 TO 9.0.
Claim 2
Independent Claim
86 words
THE METHOD OF MODIFYING STARCH TO STABILIZE ITS PASTE VISCOSITY AND REDUCE ITS GELATION TENDENCY, COMPRISING PROVIDING AN AQUEOUS SLURRY CONTAINING 20 TO 50 PERCENT BY WEIGHT OF STARCH AND AN AMOUNT OF A DICHLORINATED CYANURIC COMPOUND TO PROVIDE 0.5 TO 5.0 PERCENT BY WEIGHT OF AVAILABLE CHLORINE BASED ON THE WEIGHT OF THE STARCH, SAID SLURRY HAVING A PH OF 8.0 TO 9,0, AND MAINTAINING SAID SLURRY FOR 2 TO 4 HOURS AT 90* TO 175* F. AND AT SAID PH OF 8.0 TO 9.0.
References Cited (Backward Citations)
US3123502A
Cited
US2829991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |