US2840987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved method and arrangement for starting reaction type propulsion units using anauxiliary reaction type propulsion unit
Assignee: General Electric Co
•
Filing: 1953-03-23
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Granted: 1958-07-01
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Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 David J Bloomberg
- 👤 Burgess Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:29
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB366773A
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US2618470A
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US2577919A
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US2618431A
Cited
US2551229A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |