US2938336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas flow straightening vanes
Assignee: RTX Corp
•
Filing: 1956-12-06
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Granted: 1960-05-31
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Expires: 1976-12-06
Abstract
No abstract record available.
Inventors
- 👤 Charles J Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/78; F01; F01D; F01D25/00; F01D25/16; F01D25/162; F01D9/00; F01D9/06; F01D9/065; F05; F05B; F05B2230/00; F05B2230/60; F05B2230/604; F05B2230/606; F05D; F05D2230/00; F05D2230/60; F05D2230/64; F05D2230/642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |