US2931171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination noise suppressor and thrust reverser
Assignee: RTX Corp
•
Filing: 1955-04-19
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Granted: 1960-04-05
•
Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 John M Tyler
- 👤 Eric S Hope
- 👤 Maxon A Logsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:47
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/40; F02K1/42; F02K1/54; F02K1/56; F02K1/62; F02K1/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2417955A
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US2551372A
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US2620623A
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FR943820A
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FR56672E
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FR999513A
Cited
US2648192A
Cited
FR998358A
Cited
US2659199A
Cited
US2770944A
Cited
FR1092654A
Cited
US2726509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |