US2882356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley duct with formed bus bars
Assignee: ITE Circuit Breaker Co
•
Filing: 1956-05-04
•
Granted: 1959-04-14
•
Expires: 1976-05-04
Abstract
No abstract record available.
Inventors
- 👤 Russell S Davis
- 👤 Wittenberg Jonah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US452160A
Cited
US455339A
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US581368A
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US1998803A
Cited
US2018846A
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US2128135A
Cited
US2471739A
Cited
US2640114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |