US2608938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile steam generator
Assignee: Babcock and Wilcox Co
•
Filing: 1948-05-08
•
Granted: 1952-09-02
•
Expires: 1968-05-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Hardgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:59
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/06; A47J36/08; F; F22; F22B; F22B21/00; F22B21/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US397130A
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US751798A
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US1634084A
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US1663910A
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GB380335A
Cited
US2016787A
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US2190144A
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US2180149A
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US2366465A
Cited
US2375442A
Cited
US2463880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |