US2458804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit protector
Assignee: Individual
•
Filing: 1944-02-25
•
Granted: 1949-01-11
•
Expires: 1964-02-25
Abstract
No abstract record available.
Inventors
- 👤 Sundt Edward Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:41
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/24; H01H71/00; H01H71/08; H01H2071/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US391594A
Cited
US577447A
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USRE17840E
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US1094690A
Cited
US1261256A
Cited
US1350587A
Cited
US1372207A
Cited
US1431220A
Cited
US1477871A
Cited
US1676143A
Cited
US2147754A
Cited
US2247194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |