US3293495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuits
Assignee: Omnitronics Inc
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Filing: 1963-01-29
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Granted: 1966-12-20
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Vernon Z Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
FOR USE WITH A CONTROL CIRCUIT HAVING A SEMICONDUCTIVE SWITCHING MEANS, AN INDUCTIVE OPERATION UNIT AND A CAPACITIVE SURGE ACCOMMODATING UNIT COUPLED IN SERIES, AND A DIRECT CURRENT PASSAGE MEANS COUPLED IN PARALLEL WITH SAID CAPACITIVE UNIT, THE IMPROVEMENT WHICH COMPRISES A PROTECTIVE CIRCUIT COUPLED IN PARALLEL WITH THAT PORTION OF SAID CONTROL CIRCUIT INCLUDING SAID INDUCTIVE UNIT AND AAID CAPACITIVE UNIT, THE PROTECTIVE CIRCUIT COMPRISING SEMICONDUCTIVE BLOCKING MEANS COUPLED TO SAID INDUCTIVE OPERATING UNIT IN A SENSE TO BLOCK THE PASSAGE OF CURRENT THROUGH THE PROTECTIVE CIRCUIT RESPONSIVE TO BOTH A STEADY-STATE CURRENT AND AN INCREASING CURRENT
Claim 2
Dependent Claim
98 words
FOR USE WITH A CONTROL CIRCUIT HAVING A SEMICONDUCTIVE SWITCHING MEANS, AN INDUCTIVE OPERATION UNIT AND A CAPACITIVE SURGE ACCOMMODATING UNIT COUPLED IN SERIES, AND A DIRECT CURRENT PASSAGE MEANS COUPLED IN PARALLEL WITH SAID CAPACITIVE UNIT, THE IMPROVEMENT WHICH COMPRISES A PROTECTIVE CIRCUIT COUPLED IN PARALLEL WITH THAT PORTION OF SAID CONTROL CIRCUIT INCLUDING SAID INDUCTIVE UNIT AND AAID CAPACITIVE UNIT, THE PROTECTIVE CIRCUIT COMPRISING SEMICONDUCTIVE BLOCKING MEANS COUPLED TO SAID INDUCTIVE OPERATING UNIT IN A SENSE TO BLOCK THE PASSAGE OF CURRENT THROUGH THE PROTECTIVE CIRCUIT RESPONSIVE TO BOTH A STEADY-STATE CURRENT AND AN INCREASING CURRENT
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |