US2578030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine safety light
Assignee: Individual
•
Filing: 1948-08-02
•
Granted: 1951-12-11
•
Expires: 1968-08-02
Abstract
No abstract record available.
Inventors
- 👤 Paul J Ambrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:00
CPC Classifications
B; B63; B63B; B63B51/00; B63B51/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1457565A
Cited
US1655548A
Cited
US1964466A
Cited
GB414190A
Cited
US2151938A
Cited
US2305490A
Cited
US2346695A
Cited
US2369971A
Cited
US2404681A
Cited
US2377161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |