US2898809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low altitude bombing system and apparatus
Assignee: Individual
•
Filing: 1955-09-15
•
Granted: 1959-08-11
•
Expires: 1975-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; B64D1/04; F; F41; F41G; F41G3/00; F41G3/22; F41G3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609729A
Cited
US2805601A
Cited
US2712269A
Cited
FR1005077A
Cited
US2758511A
Cited
US2736878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |