US3435295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated power driver circuit
Assignee: Mohawk Data Sciences Corp
•
Filing: 1966-09-28
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Granted: 1969-03-25
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Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Ladd Jr
- 👤 Lynn W Marsh Jr
- 👤 John E Muschinske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:21
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/005; H03; H03K; H03K17/00; H03K17/08; H03K17/081; H03K17/0814; H03K17/08146; H03K17/082; H03K17/0826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A POWER DRIVER CIRCUIT FOR DRIVING HEAVY CURRENT INTO AN INDUCTIVE LOAD COMPRISING A FIRST TRANSISTOR AND A SECOND TRANSISTOR, CONNECTED SUCH THAT SUBSTANTIALLY THE ENTIRE LOAD CURRENT OF THE FIRST TRANSISTOR FLOWS THROUGH THE EMITTER-BASE JUNCTION OF SAID SECOND TRANSISTOR WHEN SAID CIRCUIT IS IN THE ON STATE; A LOAD COMPRISING AN INDUCTIVE COMPONENT AND A SUPPLY VOLTAGE CONNECTED TO THE OUTPUT TERMINALS OF SAID CIRCUIT;
Claim 2
Dependent Claim
67 words
A POWER DRIVER CIRCUIT FOR DRIVING HEAVY CURRENT INTO AN INDUCTIVE LOAD COMPRISING A FIRST TRANSISTOR AND A SECOND TRANSISTOR, CONNECTED SUCH THAT SUBSTANTIALLY THE ENTIRE LOAD CURRENT OF THE FIRST TRANSISTOR FLOWS THROUGH THE EMITTER-BASE JUNCTION OF SAID SECOND TRANSISTOR WHEN SAID CIRCUIT IS IN THE ON STATE; A LOAD COMPRISING AN INDUCTIVE COMPONENT AND A SUPPLY VOLTAGE CONNECTED TO THE OUTPUT TERMINALS OF SAID CIRCUIT;
References Cited (Backward Citations)
US3016477A
Cited
US3201681A
Cited
US3210561A
Cited
US3202904A
Cited
US3112431A
Cited
US3191101A
Cited
US3115610A
Cited
US3280368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |