Patent US1406234A successfully refreshed from Google Patents.
US1406234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1918-11-04
•
Granted: 1922-02-14
•
Expires: 1938-11-04
Abstract
No abstract record available.
Inventors
- 👤 Slepian Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/54
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) | 1925-02-13 | 1925-08-15 | 1926-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-02-13 | 1929-08-15 | 1930-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-02-13 | 1933-08-15 | 1934-02-14 | $7700.00 | Window Closed / Lapsed |