Patent US2989919A successfully refreshed from Google Patents.
US2989919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depth charge having rocket motor propulsion
Assignee: Saab Bofors AB
•
Filing: 1960-03-21
•
Granted: 1961-06-27
•
Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Engborg Nils Harry
- 👤 Gustafsson Lars Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:13
CPC Classifications
F; F42; F42B; F42B15/00; F42B15/22; F02; F02K; F02K9/00; F02K9/80; F02K9/92; F42B10/00; F42B10/60; F42B10/66; F42B10/663; F42B12/00; F42B12/02; F42B12/20; F42B19/00; F42B19/12; F42B19/26; F42B21/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2941470A
Cited
US2850976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |