US2875588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of red blood cells
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1953-06-11
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Granted: 1959-03-03
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Expires: 1973-06-11
Abstract
No abstract record available.
Inventors
- 👤 Berger Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:46
CPC Classifications
F; F25; F25C; F25C1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR RESTRICTING THE KINETIC PROCESSES IN BLOOD CELLS TO PREVENT DETERIORATION OF THE CELLS AND TO AID RETENTION OF THE PHYSIOLOGICAL PROPERTIES OF THE CELL, WHICH PROCESS COMPRISES THE STEPS OF PROVIDING AN ISOLATED BODY OF A LIQUID MEDIUM WHICH IS NON-OXIDIXING AND GASEOUS AT NORMAL TEMPERATURES AND THE VAPORS OF WHICH MEDIUM PROVIDE THE ATMOSPHEREABOVE THE LIQUID, AND SPRAYING BLOOD CELLS THROUGH THE VAPORS TO THE BODY OF LIQUID MEDIUM TO OCCASION FREEZING OF THE BLOOD CELLS IN THE LIQUID MEDIUM, MAINTAINING THE FROZEN CELLS AND THE BODY OF LIQUID MEDIUM UNDER REFRIGERATION CONDI-
Claim 2
Dependent Claim
97 words
A PROCESS FOR RESTRICTING THE KINETIC PROCESSES IN BLOOD CELLS TO PREVENT DETERIORATION OF THE CELLS AND TO AID RETENTION OF THE PHYSIOLOGICAL PROPERTIES OF THE CELL, WHICH PROCESS COMPRISES THE STEPS OF PROVIDING AN ISOLATED BODY OF A LIQUID MEDIUM WHICH IS NON-OXIDIXING AND GASEOUS AT NORMAL TEMPERATURES AND THE VAPORS OF WHICH MEDIUM PROVIDE THE ATMOSPHEREABOVE THE LIQUID, AND SPRAYING BLOOD CELLS THROUGH THE VAPORS TO THE BODY OF LIQUID MEDIUM TO OCCASION FREEZING OF THE BLOOD CELLS IN THE LIQUID MEDIUM, MAINTAINING THE FROZEN CELLS AND THE BODY OF LIQUID MEDIUM UNDER REFRIGERATION CONDI-
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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |