US3033177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generating and superheating unit
Assignee: Babcock and Wilcox Co
•
Filing: 1956-07-02
•
Granted: 1962-05-08
•
Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Paul H Koch
- 👤 Arthur J Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:14
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/02; F22B; F22B29/00; F22B29/06; F22B29/10; F22B31/00; F22B31/04; F22B37/00; F22B37/02; F22B37/24; F22G1/00; F22G1/16; F23; F23M; F23M5/00; F23M5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1634084A
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GB523870A
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US2628598A
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US2730080A
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FR1065655A
Cited
FR1068954A
Cited
US2815007A
Cited
GB726244A
Cited
GB727218A
Cited
US2774339A
Cited
US2842105A
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 |