US3317514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing high viscosity starch phosphate products continuously
Assignee: Cerestar USA Inc
•
Filing: 1963-12-13
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Granted: 1967-05-02
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Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Fox
- 👤 Arden R Weatherly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:45
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/02; C08B31/06; C08B31/066; A; A23; A23L; A23L29/00; A23L29/20; A23L29/206; A23L29/212; A23L29/219
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR PRODUCING STARCH PHOSPHATES WHICH COMPRISES FORMING A MIXTURE OF UNGELATINIZED STARCH GRANULES, FROM ABOUT 5% TO ABOUT 12% BY WEIGHT OF AT LEAST ONE ALKALI METL PHOSPHATE SALT BASED ON THE WEIGHT OF SAID GRANULES AND FROM ABOUT 20% TO ABOUT 80% BY WEIGHT OF WATER BASED ON THE WEIGHT OF SAID GRANULES, VIGOROUSLY AGITATING SAID MIXTURE AND HEATING IT TO TEMPERATURES WITHIN THE RANGE FROM ABOUT 110% TO ABOUT 190%F. TO PRECONDITION SAID GRANULES TO ENHANCED PENETRATION BY AND REACTION WITH SAID PHOSPHATE SALT, REDICING THE WATER CONTENT OF SAID GRANULES TO BELOW 20% BY WEIGHT THEREOF AND THEN ROASTING SAID GRANULES AT TEMPERATURES WITHIN THE RANGE FROM ABOUT 290%F. TO ABOUT 400%F. TO BRING ABOUT REACTION WITH SAID PHOSPHATE SALT.
Claim 2
Dependent Claim
125 words
A PROCESS FOR PRODUCING STARCH PHOSPHATES WHICH COMPRISES FORMING A MIXTURE OF UNGELATINIZED STARCH GRANULES, FROM ABOUT 5% TO ABOUT 12% BY WEIGHT OF AT LEAST ONE ALKALI METL PHOSPHATE SALT BASED ON THE WEIGHT OF SAID GRANULES AND FROM ABOUT 20% TO ABOUT 80% BY WEIGHT OF WATER BASED ON THE WEIGHT OF SAID GRANULES, VIGOROUSLY AGITATING SAID MIXTURE AND HEATING IT TO TEMPERATURES WITHIN THE RANGE FROM ABOUT 110% TO ABOUT 190%F. TO PRECONDITION SAID GRANULES TO ENHANCED PENETRATION BY AND REACTION WITH SAID PHOSPHATE SALT, REDICING THE WATER CONTENT OF SAID GRANULES TO BELOW 20% BY WEIGHT THEREOF AND THEN ROASTING SAID GRANULES AT TEMPERATURES WITHIN THE RANGE FROM ABOUT 290%F. TO ABOUT 400%F. TO BRING ABOUT REACTION WITH SAID PHOSPHATE SALT.
References Cited (Backward Citations)
US2865762A
Cited
US3060170A
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 |