Patent US3418560A successfully refreshed from Google Patents.
US3418560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for supplying reversible electric power to reactive loads
Assignee: Westinghouse Electric Corp
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Filing: 1966-08-12
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Granted: 1968-12-24
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Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:03
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2720621A
Cited
US2926295A
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US3219908A
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US3209227A
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US3184670A
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US3344331A
Cited
US3325715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |