Patent US2503258A successfully refreshed from Google Patents.
US2503258A
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Neutralization of pectinic acids with sodium bicarbonate
Assignee: United States Department of Agriculture
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Filing: 1948-01-23
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Granted: 1950-04-11
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Expires: 1968-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert P Graham
- 👤 Allan D Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:44
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PROCESS OF PREPARING A PARTIALLY-NEUTRALIZED, LOW-METHOXYL PECTINIC ACID IN GRANULAR, FREE-FLOWING FORM WHICH COMPRISES MIXING A LOWMETHOXYL PECTINIC ACID GEL HAVING A MOISTURE CONTENT FROM 40% TO 72% WITH SOLID SODIUM BICARBONATE AND DRYING THE RESULTING PRODUCT.
Claim 2
Dependent Claim
38 words
A PROCESS OF PREPARING A PARTIALLY-NEUTRALIZED, LOW-METHOXYL PECTINIC ACID IN GRANULAR, FREE-FLOWING FORM WHICH COMPRISES MIXING A LOWMETHOXYL PECTINIC ACID GEL HAVING A MOISTURE CONTENT FROM 40% TO 72% WITH SOLID SODIUM BICARBONATE AND DRYING THE RESULTING PRODUCT.
References Cited (Backward Citations)
US2132434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |