US2563014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of carbohydrate polymeric materials
Assignee: Corn Products Refining Co
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Filing: 1950-02-01
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Granted: 1951-08-07
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Expires: 1970-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harry W Durand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:32
CPC Classifications
C; C13; C13K; C13K1/00; C13K1/06; C08; C08B; C08B30/00; C08B30/12; C08B30/18; C08B37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR PRODUCING A NOVEL CARBOHYDRATE MATERIAL WHICH COMPRISES SPRAY DRYING A CORN STARCH CONVERSION LIQUOR HAVING A D. E. VALUE OF FROM ABOUT 5 TO ABOUT 40, HEATING THE SAID DRIED PRODUCT AT A PH OF FROM ABOUT 2.0 TO ABOUT 3.0 AND AT A TEMPERATURE NOT SUBSTANTIALLY UNDER 100* C. NOR SUBSTANTIALLY OVER 200* C., WHEREBY TO POLYMERIZE COMPONENTS OF SAID PRODUCT, AND CONTINUOUSLY REMOVING WATER FORMED BY THE POLYMERIZATION REACTION DURING THE SAID HEATING STEP.
Claim 2
Dependent Claim
79 words
A PROCESS FOR PRODUCING A NOVEL CARBOHYDRATE MATERIAL WHICH COMPRISES SPRAY DRYING A CORN STARCH CONVERSION LIQUOR HAVING A D. E. VALUE OF FROM ABOUT 5 TO ABOUT 40, HEATING THE SAID DRIED PRODUCT AT A PH OF FROM ABOUT 2.0 TO ABOUT 3.0 AND AT A TEMPERATURE NOT SUBSTANTIALLY UNDER 100* C. NOR SUBSTANTIALLY OVER 200* C., WHEREBY TO POLYMERIZE COMPONENTS OF SAID PRODUCT, AND CONTINUOUSLY REMOVING WATER FORMED BY THE POLYMERIZATION REACTION DURING THE SAID HEATING STEP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |