US3043221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket propulsion method and means
Assignee: Individual
•
Filing: 1958-06-02
•
Granted: 1962-07-10
•
Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Frank H Swanser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:02
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/605; F02K9/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114214A
Cited
US2536597A
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US2686473A
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US2789505A
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US2752850A
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US2700337A
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US2753801A
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US2868127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |