US3173252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Restartable rocket motor
Assignee: Individual
•
Filing: 1962-03-23
•
Granted: 1965-03-16
•
Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Lelan D Ziegenhagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:59
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/70; F02K9/08; F02K9/26; F02K9/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3067574A
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US3105352A
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US3023573A
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US3084504A
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US3070565A
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US3073113A
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |