US2469322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of sulfuric acid heavy alkylate
Assignee: ExxonMobil Oil Corp
•
Filing: 1945-08-22
•
Granted: 1949-05-03
•
Expires: 1965-08-22
Abstract
No abstract record available.
Inventors
- 👤 Armstrong Eldon Lester
- 👤 Beman Warren Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:16
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2095473A
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US2186909A
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US2215472A
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US2226378A
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US2216222A
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US2274057A
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US2265948A
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US2369182A
Cited
US2391236A
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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) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |