Patent US4650222A successfully refreshed from Google Patents.
Patent US3269911A successfully refreshed from Google Patents.
US3269911A
Expired / Lapsed
US
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Restoration of blood to biochemical normalcy by treatment with ion exchange resins
Assignee: Rohm and Haas Co
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Filing: 1962-06-14
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Granted: 1966-08-30
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Expires: 1982-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Gibbon
- 👤 Jr Thomas F Nealon
- 👤 Jerome L Sandler
- 👤 Kunin Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:04
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF RESTORING STORED WHOLE BLOOD TO BIOCHEMICAL NORMALCY, COMPRISNG, CONTACTING THE BLOOD WITH A MIXTURE OF A STRONGLY ACIDIC CATION EXCHANGER AND A STRONGLY BASIC ANION EXCHANGER, AT LEAST ABOUT 39.5% BUT NO MORE THAN 80% BY WEIGHT OF WHICH IS THE CATION EXCHANER AND AT LEAST ABOUT 10% BY WEIGHT OF WHICH IS THE ANION EXCHANGER, FROM 0 TO ABOUT 10% EXCHANGE CAPACITY OF THE CATION EXCHANGER BEING IN THE POTASSIUM FORM WITH THE REMAINDER IN THE SODIUM FORM, AND AT LEAST ABOUT HALF OF THE EXCHANGE CAPACITY OF THE ANION EXCHANGER BEING IN THE CHLORIDE FORM.
Claim 2
Independent Claim
100 words
THE METHOD OF RESTORING STORED WHOLE BLOOD TO BIOCHEMICAL NORMALCY, COMPRISNG, CONTACTING THE BLOOD WITH A MIXTURE OF A STRONGLY ACIDIC CATION EXCHANGER AND A STRONGLY BASIC ANION EXCHANGER, AT LEAST ABOUT 39.5% BUT NO MORE THAN 80% BY WEIGHT OF WHICH IS THE CATION EXCHANER AND AT LEAST ABOUT 10% BY WEIGHT OF WHICH IS THE ANION EXCHANGER, FROM 0 TO ABOUT 10% EXCHANGE CAPACITY OF THE CATION EXCHANGER BEING IN THE POTASSIUM FORM WITH THE REMAINDER IN THE SODIUM FORM, AND AT LEAST ABOUT HALF OF THE EXCHANGE CAPACITY OF THE ANION EXCHANGER BEING IN THE CHLORIDE FORM.
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) | 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 |