Patent US1439204A successfully refreshed from Google Patents.
US2240803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker control system
Assignee: BBC Brown Boveri AG Germany
•
Filing: 1938-06-27
•
Granted: 1941-05-06
•
Expires: 1958-06-27
Abstract
No abstract record available.
Inventors
- 👤 Schiesser Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:52
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/121
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) | 1944-05-05 | 1944-11-04 | 1945-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-05-05 | 1948-11-04 | 1949-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-05-05 | 1952-11-04 | 1953-05-06 | $7700.00 | Window Closed / Lapsed |