US2942416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control systems for power plants having at least two power units
Assignee: Napier Turbochargers Ltd
•
Filing: 1957-05-14
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Granted: 1960-06-28
•
Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Buckingham David Edwin James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:19
CPC Classifications
B; B64; B64D; B64D31/00; B64D31/02; B64D31/06; B64D31/09; B64D31/10; F; F02; F02D; F02D25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB617729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |