US2430206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device
Assignee: Westinghouse Electric Corp
•
Filing: 1944-06-27
•
Granted: 1947-11-04
•
Expires: 1964-06-27
Abstract
No abstract record available.
Inventors
- 👤 Edward F W Beck
- 👤 John S Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:08
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/10; H01T4/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US288682A
Cited
US1216538A
Cited
US1457249A
Cited
US1772664A
Cited
GB238682A
Cited
US2134392A
Cited
US2198101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |