Patent US2944532A successfully refreshed from Google Patents.
US2944532A
Expired / Lapsed
US
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Vapor generator
Assignee: Foster Wheeler Inc
•
Filing: 1954-10-08
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Granted: 1960-07-12
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Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frisch Martin
- 👤 John W Cartinhour
- 👤 Tinbergen William
- 👤 Stern Tobias
- 👤 George W Tidd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:38
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/22; F22B21/00; F22B21/02; F22B21/04; F22B21/08; F22B21/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US973468A
Cited
US1798830A
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US1722496A
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US1917275A
Cited
US2009852A
Cited
US2088456A
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US2170145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |