US3058314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the low temperature separation of air
Assignee: BOC Group Ltd
•
Filing: 1957-08-12
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Granted: 1962-10-16
•
Expires: 1977-08-12
Abstract
No abstract record available.
Inventors
- 👤 Gardner John Baxter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04254; F25J3/0426; F25J3/04266; F25J3/04272; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F25J3/04151; F25J3/04187; F25J3/04193; F25J3/042; F25J3/04218; F25J3/04224; F25J3/04278; F25J3/044; F25J3/04406; F25J3/04412; F25J2200/00; F25J2200/72; F25J2270/00; F25J2270/12; F25J2270/42; F25J2270/58; F25J2270/66; Y; Y10; Y10S; Y10S62/00; Y10S62/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR THE PRODUCTION OF AT LEAST ONE LIQUEFIED ATMOSPHERIC GAS BY THE LIQUEFACTION AND SUBSEQUENT RECTIFICATION OF AIR WITH THE SIMULTANEOUS PRODUCTION OF GASEOUS METHANE, INCLUDING THE STEPS OF EVAPORATING LIQUID METHANE INA VAPORISER IN INDIRECT HEAT EXCHANGE WITH AN AT LEAST PARTIALLY CONDENSED INERT GAS HAVING A BOILING AT ATMOSPHERIC PRESSURE BELOW -183*C. OPERATING IN A
Claim 2
Dependent Claim
59 words
A PROCESS FOR THE PRODUCTION OF AT LEAST ONE LIQUEFIED ATMOSPHERIC GAS BY THE LIQUEFACTION AND SUBSEQUENT RECTIFICATION OF AIR WITH THE SIMULTANEOUS PRODUCTION OF GASEOUS METHANE, INCLUDING THE STEPS OF EVAPORATING LIQUID METHANE INA VAPORISER IN INDIRECT HEAT EXCHANGE WITH AN AT LEAST PARTIALLY CONDENSED INERT GAS HAVING A BOILING AT ATMOSPHERIC PRESSURE BELOW -183*C. OPERATING IN 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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |