US3050938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket nozzles
Assignee: Atlantic Research Corp
•
Filing: 1958-11-12
•
Granted: 1962-08-28
•
Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Robert H Twyford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:39
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/80; F02K9/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1629767A
Cited
US2575735A
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US2621871A
Cited
US2654552A
Cited
FR1050948A
Cited
US2868478A
Cited
US2780059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |