US2710067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage power jets and increased flame propagation for helicopters
Assignee: JET HELICOPTER Corp
•
Filing: 1951-02-28
•
Granted: 1955-06-07
•
Expires: 1971-02-28
Abstract
No abstract record available.
Inventors
- 👤 Pesaro Kazimir Martini Sfo Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2548804A
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US2605608A
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US2465856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |