US2952972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket motor and method of operating same
Assignee: Individual
•
Filing: 1957-09-09
•
Granted: 1960-09-20
•
Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Norman A Kimmel
- 👤 John P Alden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:24
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/978; F02K9/08; F02K9/32; F02K9/974; Y; Y10; Y10S; Y10S60/00; Y10S60/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1504144A
Cited
US2206057A
Cited
US2489953A
Cited
US2579323A
Cited
US2645999A
Cited
US2693757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |