US2679567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular interrupter enclosed in bus housing
Assignee: ITE Circuit Breaker Co
•
Filing: 1951-02-15
•
Granted: 1954-05-25
•
Expires: 1971-02-15
Abstract
No abstract record available.
Inventors
- 👤 Fred L Kradel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:04
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/76; H01H33/02; H01H33/04; H01H33/12; H01H9/00; H01H9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2164175A
Cited
US2203863A
Cited
US2306242A
Cited
US2434315A
Cited
US2445588A
Cited
US2462285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |