US3135911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarity sensitive saturable core reactor
Assignee: Magnetics Inc
•
Filing: 1963-11-15
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Granted: 1964-06-02
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Roland L Van Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:17
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
SATURABLE-CORE CIRCUITRY COMPRISING SINGLE ENDED SATURABLE REACTOR MEANS INCLUDING SATURABLE CORE MEANS, AN A.C. POWER WINDING, AND A D.C. CONTROL WINDING; AND POLARITY SENSING CIRCUIT MEANS INDUCTIVELY COUPLED TO THE SATURABLE CORE MEANS TO PRODUCE UNI-DIRECTIONAL PULSES THE POLARITY OF WHICH IS RESPONSIVE TO THE DIRECTION OF D.C. IN THE CONTROL WINDING AND THE FREQUENCY OF WHICH IS
Claim 2
Dependent Claim
58 words
SATURABLE-CORE CIRCUITRY COMPRISING SINGLE ENDED SATURABLE REACTOR MEANS INCLUDING SATURABLE CORE MEANS, AN A.C. POWER WINDING, AND A D.C. CONTROL WINDING; AND POLARITY SENSING CIRCUIT MEANS INDUCTIVELY COUPLED TO THE SATURABLE CORE MEANS TO PRODUCE UNI-DIRECTIONAL PULSES THE POLARITY OF WHICH IS RESPONSIVE TO THE DIRECTION OF D.C. IN THE CONTROL WINDING AND THE FREQUENCY OF WHICH IS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |