US3284443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch-phosphate reaction products and method of making same
Assignee: Cerestar USA Inc
•
Filing: 1963-04-17
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Granted: 1966-11-08
•
Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Julian A Hay
- 👤 Forrest J Mork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:12
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/02; C08B31/06; C08B31/066; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A PROCESS OF REACTING STARCH WITH AN INORGANIC PHOSPHATE SALT BY HEATING STARCH GRANULES CONTAINING AT LEAST ONE ABSORBED ALKALI METAL PHOSPHATE SALT AND NOT MORE THAN 20% BY WEIGHT OF MOISTURE, THE STEPS WHEN COMPRISE PASSING A STREAM OF HOT INERT GAS THROUGH A BED OF SAID STARCH GRANULES AT A VELOCITY SUFFICIENT TO FLUIDIZE AND HEAT SAID GRANULES TO REACTION TEMPERATURES AND MAINTAINING SAID GRANULES IN THE FLUIDIZED AND HEATED STATE UNTIL THE DESIRED REACTION BETWEEN THE STARCH AND PHOSPHATE SALT IS COMPLETED.
Claim 2
Dependent Claim
86 words
IN A PROCESS OF REACTING STARCH WITH AN INORGANIC PHOSPHATE SALT BY HEATING STARCH GRANULES CONTAINING AT LEAST ONE ABSORBED ALKALI METAL PHOSPHATE SALT AND NOT MORE THAN 20% BY WEIGHT OF MOISTURE, THE STEPS WHEN COMPRISE PASSING A STREAM OF HOT INERT GAS THROUGH A BED OF SAID STARCH GRANULES AT A VELOCITY SUFFICIENT TO FLUIDIZE AND HEAT SAID GRANULES TO REACTION TEMPERATURES AND MAINTAINING SAID GRANULES IN THE FLUIDIZED AND HEATED STATE UNTIL THE DESIRED REACTION BETWEEN THE STARCH AND PHOSPHATE SALT IS COMPLETED.
References Cited (Backward Citations)
US2421212A
Cited
US2865762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |