Patent US3020716A successfully refreshed from Google Patents.
US3020716A
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Starting systems for gas turbine engines
Assignee: Napier Turbochargers Ltd
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Filing: 1959-10-07
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Granted: 1962-02-13
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Expires: 1979-10-07
Abstract
No abstract record available.
Inventors
- 👤 Greenly Kenneth Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:38
CPC Classifications
F; F02; F02N; F02N7/00; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/27; F16; F16H; F16H39/00; F16H39/02; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/465; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2161439A
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US2382437A
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US2562615A
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US2628476A
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US2711071A
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US2741989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |