US2593420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area nozzle
Assignee: Individual
•
Filing: 1946-05-28
•
Granted: 1952-04-22
•
Expires: 1966-05-28
Abstract
No abstract record available.
Inventors
- 👤 Walter S Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/10; B; B05; B05B; B05B1/00; B05B1/30; B05B1/32; B05B1/326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2420323A
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US2409433A
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |