US2882998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the regeneration of an adsorbent bed
Assignee: Air Liquide SA
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Filing: 1956-10-31
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Granted: 1959-04-21
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Expires: 1976-10-31
Abstract
No abstract record available.
Inventors
- 👤 Grenier Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:56
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; B; B01; B01D; B01D41/00; B01D41/04; B01D53/00; B01D53/02; B01D53/04; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08; B01J20/30; B01J20/34; B01J20/3433; B01J20/3483; C; C01; C01B; C01B23/00; C01B3/00; C01B3/50; C01B3/56; F25J; F25J5/00; B01D2257/00; B01D2257/10; B01D2257/102; B01D2257/50; B01D2257/504; B01D2259/00; B01D2259/40; B01D2259/40001; B01D2259/402; B01J2220/00; B01J2220/50; B01J2220/56; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1934075A
Cited
US2545194A
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US2625237A
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US2643525A
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US2665769A
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US2661808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |