Patent US2778346A successfully refreshed from Google Patents.
US2778346A
Expired / Lapsed
US
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Method of and apparatus for controlling vapor superheat temperatures
Assignee: Babcock and Wilcox Co
•
Filing: 1950-05-16
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Granted: 1957-01-22
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Expires: 1970-05-16
Abstract
No abstract record available.
Inventors
- 👤 Charles H Woolley
- 👤 Durham Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:52
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/02
Claims Analysis
Total Claims: 0
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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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |