US2632828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement in electric air blast circuit breaker
Assignee: ABB Norden Holding AB
•
Filing: 1948-01-06
•
Granted: 1953-03-24
•
Expires: 1968-01-06
Abstract
No abstract record available.
Inventors
- 👤 Forwald Haakon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:03
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/7015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US692735A
Cited
US1334645A
Cited
US1861128A
Cited
US1955212A
Cited
US1944403A
Cited
US1987885A
Cited
US2060282A
Cited
US2133938A
Cited
US2222719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |