Patent US2247210A successfully refreshed from Google Patents.
Patent US3011011A successfully refreshed from Google Patents.
US3011011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus ducts and insulators therefor
Assignee: Federal Pacific Electric Co
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Filing: 1955-09-26
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Granted: 1961-11-28
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Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Paul M Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:43
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |