Patent US2734023A successfully refreshed from Google Patents.
US2734023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hickman
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:42
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/28; B01D1/2887; B01D1/22; B01D1/222; B01D1/228; Y; Y10; Y10S; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
THAT METHOD PERTAINING TO THE TRANSFER OF HEAT THROUGH A HEAT EXCHANGE AND PHASE SEPARATION BARRIER TO A FLOWING FILM OF DISTILLAND ON ONE SIDE OF SAID EXCHANGER, FROM THE HEAT LIBERATED UPON THE CONDENSATION OF VAPOR THEREFROM RAISED IN TEMPERATURE BY COMPRESSION AND CONDENSED ON THE OPPOSITE SIDE OF SAID EXCHANGER, WHICH COMPRISES ROTATING SAID EXCHANGER AT SUCH A SPEED AS TO APPLY CENTRIFUGAL FORCE OF AT LEAST TEN TIMES GRAVITY TO SAID LIQUIDS SO AS TO MAINTAIN EACH OF THE SAME IN A
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US2218240A
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US2308008A
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US2554703A
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US2566274A
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US2703310A
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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) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |