US2422508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: General Electric Co
•
Filing: 1943-06-25
•
Granted: 1947-06-17
•
Expires: 1963-06-25
Abstract
No abstract record available.
Inventors
- 👤 Hoorn Fred G Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:52
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/74; H01H71/7409; H01H9/00; H01H9/02; H01H9/04; H01H2071/749
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US923839A
Cited
US1517280A
Cited
US1531722A
Cited
US1763197A
Cited
US1966051A
Cited
US2195004A
Cited
US2158317A
Cited
US2290495A
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 |