US2650670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular filtration
Assignee: Gulf Research and Development Co
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Filing: 1950-01-26
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Granted: 1953-09-01
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Expires: 1970-01-26
Abstract
No abstract record available.
Inventors
- 👤 Mario T Cichelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 07:14
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D63/00; B01D63/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
THE PROCESS OF CONCENTRATING A COMPONENT OF A PRIMARY VAPOR MIXTURE WHICH COMPRISES INTRODUCING INTO A SUBSTANTIALLY UNOBSTRUCTED SEPARATING ZONE AND PRIMARY VAPOR MIXTURE AND A SECONDARY VAPOR WHICH HAS A DEW-POINT SUCH THAT IT WILL NOT BE CONDENSED IN APPRECIABLE AMOUNTS IN THE PRESENCE OF THE MIXTURE OF PRIMARY AND SECONDARY VAPORS THUS FORMED, FORMING SEPARATE PORTIONS OF THE PRIMARY VAPOR MIXTURE RICHER RESPECTIVELY IN A MORE DIFFUSIBLE AND A LESS DIFFUSIBLE COMPONENT OF SAID VAPOR MIXTURE, CONDENSING AT LEAST A PART OF SAID PORTION RICHER IN A MORE DIFFUSIBLE COMPONENT ADJACENT TO ITS PLACE OF FORMATION AND WITHIN THE SEPARATING ZONE, REMOVING THE CONDENSED PORTION ENRICHED IN A MORE DIFFUSIBLE COMPONENT, AND REMOVING IN VAPOR FORM THE PORTION RICHER IN A LESS DIFFUSIBLE COMPONENT FROM ITS PLACE OF FORMATION, SAID SECONDARY VAPOR BEING SUFFICIENTLY INSOLUBLE IN THE CONDENSED PORTION THAT ITS RATE OF REMOVAL IN VAPOR FORM EXCEEDS ITS RATE OF REMOVAL IN THE CONDENSATE.
Claim 2
Dependent Claim
157 words
THE PROCESS OF CONCENTRATING A COMPONENT OF A PRIMARY VAPOR MIXTURE WHICH COMPRISES INTRODUCING INTO A SUBSTANTIALLY UNOBSTRUCTED SEPARATING ZONE AND PRIMARY VAPOR MIXTURE AND A SECONDARY VAPOR WHICH HAS A DEW-POINT SUCH THAT IT WILL NOT BE CONDENSED IN APPRECIABLE AMOUNTS IN THE PRESENCE OF THE MIXTURE OF PRIMARY AND SECONDARY VAPORS THUS FORMED, FORMING SEPARATE PORTIONS OF THE PRIMARY VAPOR MIXTURE RICHER RESPECTIVELY IN A MORE DIFFUSIBLE AND A LESS DIFFUSIBLE COMPONENT OF SAID VAPOR MIXTURE, CONDENSING AT LEAST A PART OF SAID PORTION RICHER IN A MORE DIFFUSIBLE COMPONENT ADJACENT TO ITS PLACE OF FORMATION AND WITHIN THE SEPARATING ZONE, REMOVING THE CONDENSED PORTION ENRICHED IN A MORE DIFFUSIBLE COMPONENT, AND REMOVING IN VAPOR FORM THE PORTION RICHER IN A LESS DIFFUSIBLE COMPONENT FROM ITS PLACE OF FORMATION, SAID SECONDARY VAPOR BEING SUFFICIENTLY INSOLUBLE IN THE CONDENSED PORTION THAT ITS RATE OF REMOVAL IN VAPOR FORM EXCEEDS ITS RATE OF REMOVAL IN THE CONDENSATE.
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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |