US2760180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long range explosive sonobuoy
Assignee: Individual
•
Filing: 1949-10-06
•
Granted: 1956-08-21
•
Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Sipkin George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
F; F42; F42B; F42B21/00; B; B63; B63B; B63B22/00; B63B22/003; F41; F41H; F41H11/00; F42B12/00; F42B12/02; F42B12/36; F42B12/56; F42B12/58; F42B22/00; F42B22/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |