US2749259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized starch slurries
Assignee: Cerestar USA Inc
•
Filing: 1952-10-04
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Granted: 1956-06-05
•
Expires: 1972-10-04
Abstract
No abstract record available.
Inventors
- 👤 James W Evans
- 👤 Glen E Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:35
CPC Classifications
C; C08; C08L; C08L3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A STARCH SLURRY ADAPTED TO BE SHIPPED IN TANK CARS, TANK TRUCKS AND THE LIKE WHICH CONTAINS ABOUT 42 TO 45% TOTAL STARCH SOLIDS COMPRISING A MIXTURE OF RAW UNCOOKED STARCH GRANULES SUSPENDED IN WATER CONTAINING A DISPERSION OF COOKED STARCH IN THE PROPORTION OF ABOUT 1% TO 10% BY WEIGHT OF TOTAL STARCH SOLIDS, SAID SLURRY HAVING A VISCOSITY NOT OVER 17,560 CENTIPOISES AT 82* F. SO THAT IT MAY BE PUMPED AT ORDINARY ATMOSPHERIC TEMPERATURES AND SAID SLURRY BEING CHARACTERIZED BY THE FACT THAT IT IS SUBSTANTIALLY STABLE SO THAT THE RAW STARCH GRANULES REMAIN IN SUSPENSION OVER A PROLONGED PERIOD OF TIME.
Claim 2
Dependent Claim
105 words
A STARCH SLURRY ADAPTED TO BE SHIPPED IN TANK CARS, TANK TRUCKS AND THE LIKE WHICH CONTAINS ABOUT 42 TO 45% TOTAL STARCH SOLIDS COMPRISING A MIXTURE OF RAW UNCOOKED STARCH GRANULES SUSPENDED IN WATER CONTAINING A DISPERSION OF COOKED STARCH IN THE PROPORTION OF ABOUT 1% TO 10% BY WEIGHT OF TOTAL STARCH SOLIDS, SAID SLURRY HAVING A VISCOSITY NOT OVER 17,560 CENTIPOISES AT 82* F. SO THAT IT MAY BE PUMPED AT ORDINARY ATMOSPHERIC TEMPERATURES AND SAID SLURRY BEING CHARACTERIZED BY THE FACT THAT IT IS SUBSTANTIALLY STABLE SO THAT THE RAW STARCH GRANULES REMAIN IN SUSPENSION OVER A PROLONGED PERIOD OF TIME.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |