US2724237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket projectile having discrete flight initiating and sustaining chambers
Assignee: Individual
•
Filing: 1946-03-05
•
Granted: 1955-11-22
•
Expires: 1966-03-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence N Hickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/74; F02K9/76; F02K9/763; F02K9/08; F02K9/28; F02K9/32; F02K9/36; F02K9/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1102653A
Cited
US1823378A
Cited
US1901852A
Cited
US2391865A
Cited
US2412134A
Cited
US2412173A
Cited
US2524591A
Cited
US2497888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |