US3485053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a gas with a variable output by controlling the degree of refrigeration in the liquefaction of stored gas
Assignee: Air Liquide SA
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Filing: 1967-02-28
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Granted: 1969-12-23
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Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Maurice Grenier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:53
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0203; F25J1/0204; F25J1/0002; F25J1/0012; F25J1/0017; F25J1/003; F25J1/0032; F25J1/004; F25J1/0047; F25J1/005; F25J1/006; F25J1/007; F25J1/0072; F25J1/0208; F25J1/0228; F25J1/0234; F25J1/0243; F25J1/0244; F25J1/0245; F25J1/0251; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04333; F25J3/04351; F25J3/04357; F25J3/04363; F25J3/04472; F25J3/04496; F25J3/04521; F25J3/04527; F25J3/04551; F25J3/04557; F25J3/04763; F25J3/04769; F25J3/04812; F25J3/04836; F25J2235/00; F25J2235/50; F25J2245/00; F25J2245/90; F25J2250/00; F25J2250/30; F25J2250/50; 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)
US2708831A
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US2909903A
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US3058315A
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US3144316A
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US3243969A
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US3319434A
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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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |