US2417049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Babcock and Wilcox Co
•
Filing: 1943-10-18
•
Granted: 1947-03-11
•
Expires: 1963-10-18
Abstract
No abstract record available.
Inventors
- 👤 Ervin G Bailey
- 👤 Paul S Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:56
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1148331A
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GB212671A
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US1614387A
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US1656381A
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US2005224A
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US2016317A
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US2068574A
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US2116450A
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US2219147A
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US2254481A
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US2334679A
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US2275265A
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US2301898A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |