US2500934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the stripping of volatiles from fluids
Assignee: Foster Wheeler Inc
•
Filing: 1943-04-02
•
Granted: 1950-03-21
•
Expires: 1963-04-02
Abstract
No abstract record available.
Inventors
- 👤 Dion K Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:03
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/12; C11B3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1725925A
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US1771561A
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US1754598A
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US2057004A
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US2124707A
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US2280896A
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US2205090A
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US2324955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |