Patent US3056268A successfully refreshed from Google Patents.
US3056268A
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Method for stabilizing the operation of a plant for the low temperature rectification of gaseous mixtures
Assignee: Air Liquide SA
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Filing: 1958-02-03
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Granted: 1962-10-02
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Grenier Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04284; F25J3/0429; F25J3/04296; F25J3/04406; F25J3/04412; F25J3/04472; F25J3/04496; F25J3/04503; F25J3/04509; F25J2200/00; F25J2200/50; F25J2200/52; F25J2200/90; F25J2220/00; F25J2220/40; F25J2280/00; F25J2280/02; F25J2290/00; F25J2290/62; Y; Y10; Y10S; Y10S62/00; Y10S62/912; Y10S62/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2664718A
Cited
US2764536A
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US2788646A
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US2708831A
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US2873583A
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US2835116A
Cited
US2824428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |