Patent US768573A successfully refreshed from Google Patents.
US768573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine sound-direction finder.
Assignee: Submarine Signal Co
•
Filing: 1902-04-23
•
Granted: 1904-08-23
•
Expires: 1922-04-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Mundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1907-08-23 | 1908-02-22 | 1908-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-08-23 | 1912-02-22 | 1912-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-08-23 | 1916-02-22 | 1916-08-23 | $7700.00 | Window Closed / Lapsed |