US2477019A
Expired / Lapsed
US
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Method for heat-treating solid inorganic adsorbents
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-11-01
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Granted: 1949-07-26
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Expires: 1964-11-01
Abstract
No abstract record available.
Inventors
- 👤 Utterback Ernest
- 👤 Eric V Bergstrons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:18
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J20/00; B01J20/02; B01J20/06; B01J20/08; B01J20/10; B01J20/103; B01J20/30; B01J20/34; B01J20/3433; B01J20/3483; Y; Y10; Y10S; Y10S502/00; Y10S502/523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1562550A
Cited
US1573533A
Cited
US2112643A
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US2245664A
Cited
US2351875A
Cited
US2391116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |