US2489954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recoilless gun with breech closing mechanism
Assignee: Individual
•
Filing: 1945-09-06
•
Granted: 1949-11-29
•
Expires: 1965-09-06
Abstract
No abstract record available.
Inventors
- 👤 Burney Charles Dennistoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:36
CPC Classifications
F; F41; F41A; F41A5/00; F41A5/18; F41A1/00; F41A1/08; F41A3/00; F41A3/02; F41A3/10; F41A9/00; F41A9/01; F41A9/06; F41A9/09; F41A9/10; F41A9/13; F41A9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US160691A
Cited
US702240A
Cited
US747848A
Cited
US1487214A
Cited
US1525065A
Cited
US1805601A
Cited
GB468583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |