Patent US3122004A successfully refreshed from Google Patents.
US3122004A
Expired / Lapsed
US
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Apparatus for cryogenic refrigeration
Assignee: Union Carbide Corp
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Filing: 1961-03-27
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Granted: 1964-02-25
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 James L Aberle
- 👤 Richard J Frainier
- 👤 Hugh M Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:48
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; H; H01; H01F; H01F6/00; H01F6/04; Y; Y10; Y10S; Y10S62/00; Y10S62/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A COMPONENT REFRIGERATING CONTAINER COMPRISING A LIQUEFIED GAS REFRIGERANT INNER VESSEL, AN EXTERIOR SHELL SURROUNDING THE INNER VESSEL SO AS TO FORM AN EVACUABLE SPACE THEREBETWEEN, A VAPOR-REFRIGERATED THERMAL SHIELD SITUATED BETWEEN SAID EXTERIOR SHELL AND SAID INNER VESSEL, INNER VESSEL VAPOR VENTING MEANS, INNER VESSEL LIQUEFIED GAS FILL-WITHDRAWAL MEANS, AND MEANS FOR SUPPORTING SAID THERMAL SHIELD AND SAID INNER VESSEL WITHIN SAID EXTERIOR SHELL, THE COMBINATION THEREWITH OF: AN ACCESS CONDUIT CONNECTED TO SAID EXTERIOR SHELL AND EXTENDING ACROSS SAID EVACUABLE SPACE INTO THE INTERIOR OF SAID INNER VESSEL; AN INWARDLY EXTENDING PORTION OF SAID INNER VESSEL CONCEN-
Claim 2
Dependent Claim
100 words
IN A COMPONENT REFRIGERATING CONTAINER COMPRISING A LIQUEFIED GAS REFRIGERANT INNER VESSEL, AN EXTERIOR SHELL SURROUNDING THE INNER VESSEL SO AS TO FORM AN EVACUABLE SPACE THEREBETWEEN, A VAPOR-REFRIGERATED THERMAL SHIELD SITUATED BETWEEN SAID EXTERIOR SHELL AND SAID INNER VESSEL, INNER VESSEL VAPOR VENTING MEANS, INNER VESSEL LIQUEFIED GAS FILL-WITHDRAWAL MEANS, AND MEANS FOR SUPPORTING SAID THERMAL SHIELD AND SAID INNER VESSEL WITHIN SAID EXTERIOR SHELL, THE COMBINATION THEREWITH OF: AN ACCESS CONDUIT CONNECTED TO SAID EXTERIOR SHELL AND EXTENDING ACROSS SAID EVACUABLE SPACE INTO THE INTERIOR OF SAID INNER VESSEL; AN INWARDLY EXTENDING PORTION OF SAID INNER VESSEL CONCEN-
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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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |