Patent US2470193A successfully refreshed from Google Patents.
US2470193A
Expired / Lapsed
US
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Treatment of hydrocarbons
Assignee: Texaco Inc
•
Filing: 1940-12-31
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Granted: 1949-05-17
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Expires: 1960-12-31
Abstract
No abstract record available.
Inventors
- 👤 William M Stratford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:13
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; B; B01; B01J; B01J21/00; B01J21/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1598254A
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US1603314A
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US1802628A
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GB386669A
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US2076545A
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US2163525A
Cited
GB504614A
Cited
US2163526A
Cited
US2163527A
Cited
US2281919A
Cited
US2278590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |