US2663322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible supersonic nozzle
Assignee: Individual
•
Filing: 1950-02-06
•
Granted: 1953-12-22
•
Expires: 1970-02-06
Abstract
No abstract record available.
Inventors
- 👤 Harry J Allen
- 👤 Robert N Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:54
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1095767A
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FR587263A
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FR789809A
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US2448966A
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US2424654A
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US2462953A
Cited
US2434835A
Cited
US2560634A
Cited
US2486287A
Cited
US2472949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |