Patent US2422337A successfully refreshed from Google Patents.
US2422337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine detecting buoy
Assignee: Individual
•
Filing: 1941-04-15
•
Granted: 1947-06-17
•
Expires: 1961-04-15
Abstract
No abstract record available.
Inventors
- 👤 Chilowsky Constantin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1195317A
Cited
US1320610A
Cited
DE599586C
Cited
US1249486A
Cited
US1427560A
Cited
US1430162A
Cited
US1426337A
Cited
US1610779A
Cited
US1466284A
Cited
US1749444A
Cited
DE523880C
Cited
DE596439C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |