US3450983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for balancing an unsymmetrically loaded polyphase net
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1966-09-22
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Granted: 1969-06-17
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Expires: 1986-09-22
Abstract
No abstract record available.
Inventors
- 👤 Floris Koppelmann
- 👤 Michael Hausler
- 👤 Detlef Knuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:18
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/26; H02J3/18; H02J3/1821; H02J3/1835; Y; Y02; Y02E; Y02E40/00; Y02E40/30; Y02E40/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3040230A
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US3054940A
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US3099784A
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US3270270A
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US3295045A
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US3332008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |