US3408816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket engine injector
Assignee: National Aeronautics and Space Administration
•
Filing: 1966-10-31
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Granted: 1968-11-05
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Stein Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:33
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2513720A
Cited
US2995008A
Cited
US2775484A
Cited
US3150485A
Cited
US3232049A
Cited
US3323308A
Cited
US3344605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |