US3303662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cell preservation
Assignee: Union Carbide Corp
•
Filing: 1964-01-23
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Granted: 1967-02-14
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Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Sheldon W Moline
- 👤 Arthur W Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:46
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/04; A; A01; A01N; A01N1/00; A01N1/10; A01N1/12; A01N1/122; A01N1/125; A01N1/16; A01N1/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS FOR PRESERVING ANIMAL ORGANS WHICH COMPRISES (1) PERFUSING THE ORGAN WITH A PERFUSION MEDIUM CONTAINING NUTRIENTS FOR THE CELLS IN SAID ORGAN AND A PROTECTIVE ADDIVE TO REDUCE DAMAGE IN THE CELLS OF THE ORGAN DURING SUBSEQUENT FREEZING, (2) COOLING BE PERFUSED ORGAN TO THE FREEZING POINT, (3) FURTHER COOLING THE PERFUSED ORGAN THROUGH THE LIQUID-SOLID PHASE CHANGE IN LESS THAN ABOUT 10 MINUTES, (4) FURTHER COOLING THE SOLIDIFIED ORGAN TO ABOUT --50*C. AT A RATE OF NOT MORE THAN ABOUT 3*C. PER MINUTE, AND (5) FURTHER COOLING THE FROZEN ORGAN AND MAINTAINING THE FROZEN ORGAN AT A TEMPERATURE BELOW ABOUT -- 130*C.
Claim 2
Dependent Claim
105 words
A PROCESS FOR PRESERVING ANIMAL ORGANS WHICH COMPRISES (1) PERFUSING THE ORGAN WITH A PERFUSION MEDIUM CONTAINING NUTRIENTS FOR THE CELLS IN SAID ORGAN AND A PROTECTIVE ADDIVE TO REDUCE DAMAGE IN THE CELLS OF THE ORGAN DURING SUBSEQUENT FREEZING, (2) COOLING BE PERFUSED ORGAN TO THE FREEZING POINT, (3) FURTHER COOLING THE PERFUSED ORGAN THROUGH THE LIQUID-SOLID PHASE CHANGE IN LESS THAN ABOUT 10 MINUTES, (4) FURTHER COOLING THE SOLIDIFIED ORGAN TO ABOUT --50*C. AT A RATE OF NOT MORE THAN ABOUT 3*C. PER MINUTE, AND (5) FURTHER COOLING THE FROZEN ORGAN AND MAINTAINING THE FROZEN ORGAN AT A TEMPERATURE BELOW ABOUT -- 130*C.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |