US2593435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superheater control
Assignee: Foster Wheeler Inc
•
Filing: 1946-08-02
•
Granted: 1952-04-22
•
Expires: 1966-08-02
Abstract
No abstract record available.
Inventors
- 👤 Frisch Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:30
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/10; F22B35/102; F22B31/00; F22B31/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2328499A
Cited
US2371226A
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US159069A
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US1834782A
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US1931948A
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US1972356A
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US2052375A
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US2201616A
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US2108135A
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US2101106A
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US2170345A
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US2335655A
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US2169935A
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US2430446A
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US2405573A
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US2368629A
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |