US2649928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating moisture from a vapor
Assignee: Babcock and Wilcox Co
•
Filing: 1949-11-30
•
Granted: 1953-08-25
•
Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Durham Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/30; F22B37/303
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US558984A
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US945632A
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US1218848A
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GB253606A
Cited
US1714825A
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US1780156A
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GB408413A
Cited
US2037164A
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US2341097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |