US2548192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorption process and apparatus
Assignee: Union Oil Company of California
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Filing: 1947-09-30
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Granted: 1951-04-10
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Expires: 1967-09-30
Abstract
No abstract record available.
Inventors
- 👤 Clyde H O Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; C01B13/0259; B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/08; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/106; B01D2253/112; B01D2253/1124; B01D2256/00; B01D2256/10; B01D2256/12; B01D2257/00; B01D2257/10; B01D2257/104; B01D2257/50; B01D2257/504; B01D2257/70; B01D2257/702; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40011; B01D2259/40077; B01D2259/40081; B01D2259/40083; B01D2259/40086; B01D2259/40088; B01D53/26; B01D53/261; C01B2210/00; C01B2210/0043; C01B2210/0046; C01B2210/0051; C01B2210/0062; C01B2210/0068; C01B2210/007; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US879129A
Cited
US1422007A
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US1836301A
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GB305975A
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US1825707A
Cited
US2384311A
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GB572423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |