Patent US3228928A successfully refreshed from Google Patents.
US3228928A
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Periodate modified polygalactomannan gum and method of preparing same
Assignee: General Mills Inc
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Filing: 1963-06-27
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Granted: 1966-01-11
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Opie
- 👤 James L Keen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:48
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0087; C08B37/0093; C08B37/0096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CONTINOUS PROCESS OF PREPARING A PERIODATE MODIFIED POLYGALACTOMANNAN GUM COMPRISING REACTING TWO METERED STREAMS OF MATERIAL, ONE STREAM COMPRISING A SUBSTANTAILLY DRY POLYGALACTOMANNAN GUM, THE SECOND STREAM COMPRISING AN AQUEOUS ACIDIC SOULUTION OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF PERIODIC ACID AND THE ALKALI METAL SALTS THEREOF, SAID SOULTION HAVING A MOLARITY BETWEEN 0.1 TO 0.5 AND BEING EMPLOYED IN AN AMOUNT OF FROM 1 TO 3.5 PARTS OF SOULUTION PER ONE PART OF GUM BY WEIGHT, SAID OXIDIZING AGENT BEING EMPLOYED IN AN AMOUNT OF FROM 0.01 TO 0.5 MOLE PER ANHYDROUS HEXOSE UNIT IN SAID GUM, AND THE TOTAL WATER CONTENT IN THE REACTION SYSTEM BEING NOT MORE THAN 80% BY WEIGHT.
Claim 2
Dependent Claim
118 words
A CONTINOUS PROCESS OF PREPARING A PERIODATE MODIFIED POLYGALACTOMANNAN GUM COMPRISING REACTING TWO METERED STREAMS OF MATERIAL, ONE STREAM COMPRISING A SUBSTANTAILLY DRY POLYGALACTOMANNAN GUM, THE SECOND STREAM COMPRISING AN AQUEOUS ACIDIC SOULUTION OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF PERIODIC ACID AND THE ALKALI METAL SALTS THEREOF, SAID SOULTION HAVING A MOLARITY BETWEEN 0.1 TO 0.5 AND BEING EMPLOYED IN AN AMOUNT OF FROM 1 TO 3.5 PARTS OF SOULUTION PER ONE PART OF GUM BY WEIGHT, SAID OXIDIZING AGENT BEING EMPLOYED IN AN AMOUNT OF FROM 0.01 TO 0.5 MOLE PER ANHYDROUS HEXOSE UNIT IN SAID GUM, AND THE TOTAL WATER CONTENT IN THE REACTION SYSTEM BEING NOT MORE THAN 80% BY WEIGHT.
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |