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US3361870A
Expired / Lapsed
US
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Electric power transmission system including three phase conductors each disposed ina separate return conductor
Assignee: Westinghouse Electric Corp
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Filing: 1965-07-26
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Granted: 1968-01-02
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Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:40
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06; H02G5/063; H01; H01R; H01R35/00; H02G5/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1037522A
Cited
US1906209A
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US2191071A
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US2229006A
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US2306527A
Cited
US2784012A
Cited
US2969438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |