US3020710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means for rocket nozzles
Assignee: Individual
•
Filing: 1956-03-29
•
Granted: 1962-02-13
•
Expires: 1976-03-29
Abstract
No abstract record available.
Inventors
- 👤 Stephen H Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/978
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2370870A
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US2605607A
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US2492835A
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US2627160A
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FR993831A
Cited
US2661691A
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US2720749A
Cited
FR1088620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |