Patent US2986005A successfully refreshed from Google Patents.
US2986005A
Expired / Lapsed
US
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Engine starting system
Assignee: Boeing Co
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Filing: 1959-04-24
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Granted: 1961-05-30
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Expires: 1979-04-24
Abstract
No abstract record available.
Inventors
- 👤 Jack D Dudley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:29
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/27; F02C7/272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358947A
Cited
US1935123A
Cited
US2171257A
Cited
US2313056A
Cited
GB545048A
Cited
US2399680A
Cited
US2652781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |