Patent US3270003A successfully refreshed from Google Patents.
US3270003A
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Iron complexed sulfonated polyflavonoids and their preparation
Assignee: Rayonier Inc
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Filing: 1964-08-07
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Granted: 1966-08-30
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Lloyd Eugene Van Blaricom
- 👤 Johnston Frederic Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:52
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/22; C07D311/26; C07D311/28; C07D311/32; C05; C05D; C05D9/00; C05D9/02; C07D311/40; C07F; C07F15/00; C07F15/02; C07F15/025; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE FERROUS COMPLEXED WATER-SOLUBLE SULFONATED POLYFLAVONOID PRODUCT PRODUCT BY DIGESTING A CONIFEROUS BARK OR QUEBRACHO IN AN AQUEOUS SOLTUION OF SODIUM SULFITE OR POTASSIUM SULFITE OR SODIUM BISULFITE OR POTASSIUM BISULFITE IN AN AMOUNT SUFFICIENT TO SUPPLY FROM 0.03 TO 0.2 PART OF SO2 PER PART OF BONE DRY BARK OF QUEBRACHO, SAID DIGESTION BEING AT A TEMPERATURE OF FROM 105* TO 200*C. FOR FROM 15 TO 240 MINUTES TO FORM A SOLUBLE SULFONATED POLYFLAVONOID, AND REACTING THE SULFONATED POLYFLAVONOID IN AN AQUEOUS SOLUTION WITH SUFFICIENT FERROUS SULFATE TO SUPPLY FROM 2.0 TO 14% OF IRON BASED ON THE TOTAL WEIGHT OF SULFONATED POLYFLAVONOID FORMING THE FERROUS COMPLEXED POLYFLAVONOID PRODUCT.
Claim 2
Dependent Claim
110 words
THE FERROUS COMPLEXED WATER-SOLUBLE SULFONATED POLYFLAVONOID PRODUCT PRODUCT BY DIGESTING A CONIFEROUS BARK OR QUEBRACHO IN AN AQUEOUS SOLTUION OF SODIUM SULFITE OR POTASSIUM SULFITE OR SODIUM BISULFITE OR POTASSIUM BISULFITE IN AN AMOUNT SUFFICIENT TO SUPPLY FROM 0.03 TO 0.2 PART OF SO2 PER PART OF BONE DRY BARK OF QUEBRACHO, SAID DIGESTION BEING AT A TEMPERATURE OF FROM 105* TO 200*C. FOR FROM 15 TO 240 MINUTES TO FORM A SOLUBLE SULFONATED POLYFLAVONOID, AND REACTING THE SULFONATED POLYFLAVONOID IN AN AQUEOUS SOLUTION WITH SUFFICIENT FERROUS SULFATE TO SUPPLY FROM 2.0 TO 14% OF IRON BASED ON THE TOTAL WEIGHT OF SULFONATED POLYFLAVONOID FORMING THE FERROUS COMPLEXED POLYFLAVONOID PRODUCT.
References Cited (Backward Citations)
US2831022A
Cited
US2935504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |