Patent US3092974A successfully refreshed from Google Patents.
US3092974A
Expired / Lapsed
US
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Method and apparatus for controlled freezing of biologicals
Assignee: Union Carbide Corp
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Filing: 1960-07-21
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Granted: 1963-06-11
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Haumann Wilfried
- 👤 Dogan A Eserce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:12
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/12; F17; F17C; F17C3/00; F17C3/02; F25D3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AMETHOD FOR COOLING AND FREEZING BIOLOGICAL SUBSTANCE IN A PREDETERMINED MANNER BY HEAT EXCHANGE WITH A VAPORIZED LIQUIFIED GAS COMPRISING THE STEPS OF PROVIDING SAID BIOLOGICAL SUBSTANCE IN A STORAGE ZONE; PROVIDING A LIQUEFIED GAS BODY HAVING A BOILING POINT BELOW ABOUT - 183*C. AT ATMOSPHERIC PRESSURE; VAPORIZING A PORTION OF SAID LIQUEFIED GAS BODY INDEPENDENTLY OF THE TEMPERATURES OF SAID BIOLIGICAL SUBSTANCE AND SAID STORAGE ZONE AT AN ADJUSTABLE RATE; AND UNIFORMLY DISTRIBUTING SUCH VAPOR IN SAID STORAGE ZONE IN HEAT EXCHANGE WITH SAID BIOLOGICAL SUBSTANCE SO AS TO UNIFORMLY DISTRIBUTING FREEZE SAID BIOLOGICAL SUBSTANCE IN SAID PREDETERMINED MANNER.
Claim 2
Dependent Claim
100 words
AMETHOD FOR COOLING AND FREEZING BIOLOGICAL SUBSTANCE IN A PREDETERMINED MANNER BY HEAT EXCHANGE WITH A VAPORIZED LIQUIFIED GAS COMPRISING THE STEPS OF PROVIDING SAID BIOLOGICAL SUBSTANCE IN A STORAGE ZONE; PROVIDING A LIQUEFIED GAS BODY HAVING A BOILING POINT BELOW ABOUT - 183*C. AT ATMOSPHERIC PRESSURE; VAPORIZING A PORTION OF SAID LIQUEFIED GAS BODY INDEPENDENTLY OF THE TEMPERATURES OF SAID BIOLIGICAL SUBSTANCE AND SAID STORAGE ZONE AT AN ADJUSTABLE RATE; AND UNIFORMLY DISTRIBUTING SUCH VAPOR IN SAID STORAGE ZONE IN HEAT EXCHANGE WITH SAID BIOLOGICAL SUBSTANCE SO AS TO UNIFORMLY DISTRIBUTING FREEZE SAID BIOLOGICAL SUBSTANCE IN SAID PREDETERMINED MANNER.
References Cited (Backward Citations)
US2279705A
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US2479840A
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US2479866A
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US2479867A
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US2831329A
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US2951351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |