US2549104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for revivification of desiccants
Assignee: ExxonMobil Oil Corp
•
Filing: 1946-06-29
•
Granted: 1951-04-17
•
Expires: 1966-06-29
Abstract
No abstract record available.
Inventors
- 👤 Charles H Lechthaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:00
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; B; B01; B01D; B01D53/00; B01D53/26; F24F3/1417; F24F2003/1458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US731682A
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US1297724A
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US1422007A
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US1577534A
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US1617960A
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US1952406A
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US2273350A
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US2384942A
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US2409263A
Cited
US2432822A
Cited
US2434419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |