Patent US2955790A successfully refreshed from Google Patents.
US2955790A
Expired / Lapsed
US
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Electrical bus support
Assignee: PENN UNION ELECTRIC CORP
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Filing: 1956-12-14
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Granted: 1960-10-11
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Expires: 1976-12-14
Abstract
No abstract record available.
Inventors
- 👤 Sylvester Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:26
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/02; H02G5/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US433141A
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US1787787A
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US1630037A
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US1810825A
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US2074136A
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US2197728A
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US2598836A
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US2561540A
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US2616646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |