Patent US2647656A successfully refreshed from Google Patents.
US2647656A
Expired / Lapsed
US
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Fluid vessel
Assignee: Foster Wheeler Inc
•
Filing: 1948-04-14
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Granted: 1953-08-04
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Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Frisch Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:31
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F16J13/10; B; B01; B01J; B01J3/00; B01J3/04; B01J2219/00; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1943
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB213355A
Cited
US1773199A
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US1883662A
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US2028967A
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US1897213A
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DE691144C
Cited
US2296620A
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US2360391A
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US2339876A
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US2303114A
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US2413308A
Cited
US2435251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |