US3337748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low dissipation inductance drivers
Assignee: Lockheed Martin Corp
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Filing: 1963-12-23
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Granted: 1967-08-22
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 William T Rusch
- 👤 Thomas E Woodruff
- 👤 Kittredge Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
H; H03; H03K; H03K6/00; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64; H03K3/00; H03K3/02; H03K3/53; H03K3/57; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/62; H03K4/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A LOW LOSS POWER SUPPLY SYSTEM COMPRISING, IN COMBINATION, A SOURCE OF SUBSTANTIALLY CONSTANT CURRENT CONNECTED TO ONE TERMINAL OF A LOAD, A DIODE CONNECTED IN SERIES WITH A FIRST TRANSISTOR, THE SERIES COMBINATION OF SAID DIODE AND SAID TRANSISTOR BEING CONNECTED ACROSS AND LOAD, A SECOND TRANSISTOR CONNECTED IN SERIES WITH A VOLTAGE SUPPLY, AND SAID LAST-NAMED SERIES COMBINATION BEING CONNECTED IN PARALLEL WITH THE SERIES COMBINATION OF SAID DIODE AND SAID FIRST TRANSISTOR.
Claim 2
Dependent Claim
75 words
A LOW LOSS POWER SUPPLY SYSTEM COMPRISING, IN COMBINATION, A SOURCE OF SUBSTANTIALLY CONSTANT CURRENT CONNECTED TO ONE TERMINAL OF A LOAD, A DIODE CONNECTED IN SERIES WITH A FIRST TRANSISTOR, THE SERIES COMBINATION OF SAID DIODE AND SAID TRANSISTOR BEING CONNECTED ACROSS AND LOAD, A SECOND TRANSISTOR CONNECTED IN SERIES WITH A VOLTAGE SUPPLY, AND SAID LAST-NAMED SERIES COMBINATION BEING CONNECTED IN PARALLEL WITH THE SERIES COMBINATION OF SAID DIODE AND SAID FIRST TRANSISTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |