US2664957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for aircraft propulsion power plants, including a reciprocating internal-combustion engine and an exhaust driven turbine
Assignee: Napier Turbochargers Ltd
•
Filing: 1951-10-26
•
Granted: 1954-01-05
•
Expires: 1971-10-26
Abstract
No abstract record available.
Inventors
- 👤 Catford Adrian Leslie
- 👤 Chamberlin Reginald He Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:25
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/14; F02B37/04; F02B37/10; F02B37/105; F02B37/16; F02B37/164; F02B37/166; F02B37/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |