Patent US3260058A successfully refreshed from Google Patents.
US3260058A
Expired / Lapsed
US
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Method and apparatus for separating gaseous mixtures, particularly helium-containing gases
Assignee: Air Products and Chemicals Inc
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Filing: 1962-05-09
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Granted: 1966-07-12
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ray Joseph
- 👤 Jr Lee S Gaumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/06; F25J3/063; F25J3/066; F25J3/0605; F25J3/061; F25J3/0635; F25J3/0685; F25J3/069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF SEPARATING COMPONENTS OF GASEOUS MIXTURES, COMPRISING THE STEPS OF COOLING A GASEOUS MIXTURE TO A FIRST RELATIVELY LOW TEMPERATURE AND PARTIALLY LIQUEFYING THE GASEOUS MIXTURE TO PRODUCE A FIRST LIQUID PORTION AND A FIRST VAPOR PORTION, PASSING PARTIALLY LIQUEFIED GASEOUS MIXTURE TO A FIRST SEPARATION ZONE, WITHDRAWING FROM THE FIRST SEPARATION ZONE A FIRST LIQUID OF THE COMPOSITION SUBSTANTIALLY CORRESPONDING TO THE COMPOSITION OF THE FIRST LIQUID PORTION AND A FIRST VAPOR OF A COMPOSITION SUNBSTANTIALLY CORRESPONDING TO THE COMPOSITION OF THE FIRST VAPOR PORTION, FLASHING A SECOND VAPOR FROM SAID FIRST LIQUID, COOLING SAID FIRST VAPOR AND SAID SECOND VAPOR TO A
Claim 2
Independent Claim
106 words
A METHOD OF SEPARATING COMPONENTS OF GASEOUS MIXTURES, COMPRISING THE STEPS OF COOLING A GASEOUS MIXTURE TO A FIRST RELATIVELY LOW TEMPERATURE AND PARTIALLY LIQUEFYING THE GASEOUS MIXTURE TO PRODUCE A FIRST LIQUID PORTION AND A FIRST VAPOR PORTION, PASSING PARTIALLY LIQUEFIED GASEOUS MIXTURE TO A FIRST SEPARATION ZONE, WITHDRAWING FROM THE FIRST SEPARATION ZONE A FIRST LIQUID OF THE COMPOSITION SUBSTANTIALLY CORRESPONDING TO THE COMPOSITION OF THE FIRST LIQUID PORTION AND A FIRST VAPOR OF A COMPOSITION SUNBSTANTIALLY CORRESPONDING TO THE COMPOSITION OF THE FIRST VAPOR PORTION, FLASHING A SECOND VAPOR FROM SAID FIRST LIQUID, COOLING SAID FIRST VAPOR AND SAID SECOND VAPOR TO A
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |