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Patent US2947289A successfully refreshed from Google Patents.
US2947289A
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Steam temperature control
Assignee: Riley Power Inc
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Filing: 1958-04-11
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Granted: 1960-08-02
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Expires: 1978-04-11
Abstract
No abstract record available.
Inventors
- 👤 Earle C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:16
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/34; F22B21/341; F22B21/343; F22B21/345; F22G; F22G5/00; F22G5/02
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |