US3325720A
Expired / Lapsed
US
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Inverter
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1964-11-06
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Granted: 1967-06-13
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Expires: 1984-11-06
Abstract
No abstract record available.
Inventors
- 👤 Stumpe August Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:05
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/51; H02M7/515; H02M7/5152; H02M7/5155; H02M7/523; H02M7/4815; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN INVERTER, COMPRISING, IN COMBINATION: (A) A CHARGING INDUCTANCE; (B) A SERIES-CIRCUIT COMPRISING FIRST AND SECOND CAPACITORS AND A CHARGE-CHANGE INDUCTANCE CONNECTED BETWEEN SAID FIRST AND SECOND CAPACITORS, SAID CHARGING INDUCTANCE AND SAID SERIES-CIRCUIT BEING CONNECTED IN SERIES ACROSS A SECOND OF DIRECT CURRENT; (C) A FIRST CONTROLLABLE RECTIFIER CONNECTED ACROSS SO MUCH OF SUCH SERIES-CIRCUIT WHICH INCLUDES SAID FIRST CAPACITOR AND SAID CHARGE-CHANGE INDUCTANCE; AND (D) A SECOND CONTROLLABLE RECTIFIER CONNECTED ACROSS SO MUCH OF SAID SERIES-CIRCUIT WHICH INCLUDES SAID SECOND CAPACITOR AND SAID CHARGE-CHANGE INDUCTANCE.
Claim 2
Dependent Claim
87 words
AN INVERTER, COMPRISING, IN COMBINATION: (A) A CHARGING INDUCTANCE; (B) A SERIES-CIRCUIT COMPRISING FIRST AND SECOND CAPACITORS AND A CHARGE-CHANGE INDUCTANCE CONNECTED BETWEEN SAID FIRST AND SECOND CAPACITORS, SAID CHARGING INDUCTANCE AND SAID SERIES-CIRCUIT BEING CONNECTED IN SERIES ACROSS A SECOND OF DIRECT CURRENT; (C) A FIRST CONTROLLABLE RECTIFIER CONNECTED ACROSS SO MUCH OF SUCH SERIES-CIRCUIT WHICH INCLUDES SAID FIRST CAPACITOR AND SAID CHARGE-CHANGE INDUCTANCE; AND (D) A SECOND CONTROLLABLE RECTIFIER CONNECTED ACROSS SO MUCH OF SAID SERIES-CIRCUIT WHICH INCLUDES SAID SECOND CAPACITOR AND SAID CHARGE-CHANGE INDUCTANCE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |