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US2884911A
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Assignee: Foster Wheeler Inc
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Filing: 1956-01-23
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Granted: 1959-05-05
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Henry J Jankowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:17
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; F22B37/205; F22G; F22G7/00; F22G7/14; F22G7/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US622778A
Cited
US1129553A
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US2267839A
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US2469487A
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US2395580A
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FR893994A
Cited
US2762635A
Cited
US2834327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |