US3092760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching circuit
Assignee: Schneider Electric USA Inc
•
Filing: 1959-12-14
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Granted: 1963-06-04
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Manners Frank Alan
- 👤 Viney Terrence E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:20
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A TRANSISTORIZED CIRCUIT FOR CONTROLLING THE ENERGIZATION OF A RELAY COIL ENERGIZABLE BY CURRENT IN ACCORDANCE WITH A SIGNAL VOLTAGE, SAID CIRCUIT COMPRISING A FIRST CIRCUIT ADAPTED FOR ENERGIZING A RELAY COIL AND INCLUDING A FIRST TRANSISTOR OPERABLE FOR CONTROLLING THE FLOW OF CURRENTT IN SAID FIRST CIRCUIT, A SECOND CIRCUIT INCLUDING A SECOND TRANSISTOR CONTROLLING THE OPERATION OF SAID FIRST TRANSISTOR, MEANS FOR APPLYING A BIAS VOLTAGE TO SAID SECOND TRANSISTOR, MEANS FOR APPLYING SAID SIGNAL VOLTAGE FROM A SIGNAL SOURCE TO SAID SECOND TRANSISTOR, MEANS
Claim 2
Dependent Claim
87 words
A TRANSISTORIZED CIRCUIT FOR CONTROLLING THE ENERGIZATION OF A RELAY COIL ENERGIZABLE BY CURRENT IN ACCORDANCE WITH A SIGNAL VOLTAGE, SAID CIRCUIT COMPRISING A FIRST CIRCUIT ADAPTED FOR ENERGIZING A RELAY COIL AND INCLUDING A FIRST TRANSISTOR OPERABLE FOR CONTROLLING THE FLOW OF CURRENTT IN SAID FIRST CIRCUIT, A SECOND CIRCUIT INCLUDING A SECOND TRANSISTOR CONTROLLING THE OPERATION OF SAID FIRST TRANSISTOR, MEANS FOR APPLYING A BIAS VOLTAGE TO SAID SECOND TRANSISTOR, MEANS FOR APPLYING SAID SIGNAL VOLTAGE FROM A SIGNAL SOURCE TO SAID SECOND TRANSISTOR, MEANS
References Cited (Backward Citations)
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Cited
US2913636A
Cited
US2918609A
Cited
US2923863A
Cited
US2927259A
Cited
US3018420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |