US3396538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water injection for thrust augmentation
Assignee: RTX Corp
•
Filing: 1966-10-03
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Granted: 1968-08-13
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur E Wetherbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:10
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/20; F02C6/203; B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/12; F02C3/00; F02C3/20; F02C3/30; F02C3/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE920205C
Cited
US2648196A
Cited
US2551229A
Cited
US2866313A
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GB746377A
Cited
US2987873A
Cited
US3327480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |