Patent US3033179A successfully refreshed from Google Patents.
US3033179A
Expired / Lapsed
US
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Vapor generating unit
Assignee: Babcock and Wilcox Co
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Filing: 1955-02-15
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Granted: 1962-05-08
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Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 Ronald E Zoller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:32
CPC Classifications
F; F22; F22G; F22G7/00; F22G7/14; F22B; F22B21/00; F22B21/34; F22B21/341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1475924A
Cited
FR752635A
Cited
FR771052A
Cited
US2048039A
Cited
US2231016A
Cited
US2420647A
Cited
FR893994A
Cited
US2762635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |