Patent US2588296A successfully refreshed from Google Patents.
US2588296A
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US
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Gas treatment and apparatus therefor
Assignee: Alcoa Corp
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Filing: 1946-02-15
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Granted: 1952-03-04
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Expires: 1966-02-15
Abstract
No abstract record available.
Inventors
- 👤 Jr George Franklin Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; E21B43/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US956058A
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US1768984A
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US1978655A
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US2204042A
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US2309075A
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US2160831A
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US2342165A
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US2355167A
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US2323524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |