Patent US2725718A successfully refreshed from Google Patents.
US2725718A
Expired / Lapsed
US
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Ignition systems for jet motors and the like
Assignee: Goodyear Aircraft Corp
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Filing: 1950-04-10
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Granted: 1955-12-06
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Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Herman E Sheets
- 👤 Howard R Hegbar
- 👤 John C Feldscher
- 👤 Carl A Meneley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:52
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/264; F02C7/266; F02P; F02P15/00; F02P15/001; F02P15/003; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2544299A
Cited
US2073718A
Cited
US2238892A
Cited
US2444239A
Cited
US2482505A
Cited
US2508420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |