Patent US3055349A successfully refreshed from Google Patents.
US3055349A
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US
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Tubular fluid heater and support therefor
Assignee: Babcock and Wilcox Co
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Filing: 1959-05-11
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Granted: 1962-09-25
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Carl C Hamilton
- 👤 Michael C Santucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:48
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0132; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/202; F22B37/203
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |