US3205412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selector magnet driver
Assignee: AT&T Teletype Corp
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Filing: 1961-07-05
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Granted: 1965-09-07
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Expires: 1981-07-05
Abstract
No abstract record available.
Inventors
- 👤 Charles R Winston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/18; H01F7/1805; H03; H03K; H03K17/00; H03K17/04; H03K17/041; H03K17/04113; H03K5/00; H03K5/01; H03K5/02; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A DRIVING CIRCUIT FOR AN INDUCTOR COMPRISING: A VOLTAGE RESPONSIVE INPUT MEANS DRIVEN TO ONE OR THE OTHER OF TWO STATES IN ACCORDANCE WITH THE MAGNITUDE OF AN INPUT SIGNAL; A PLURALITY OF ENERGIZING CIRCUIT PATHS EACH CONNECTED IN SERIES WITH SAID INDUCTOR, ONE OF SAID PATHS BEING OF RELATIVELY LOW IMPEDANCE IN COMPARISON WITH ANOTHER; MEANS RESPONSIVE TO A CHANGE OF STATE OF SAID VOLTAGE RESPONSIVE MEANS FOR ENABLING SAID ENERGIZING CIRCUIT PATHS WHEN SAID VOLTAGE RESPONSIVE INPUT MEANS ASSUMES ONE OF ITS TWO STATES; AND MEANS EFFECTIVE IN TIME COINCIDENCE WITH THE RISING OF CURRENT IN SAID LOW IMPEDANCE PATH AND INDUCTOR TO A PREDETERMINED LEVEL FOR DISABLING SAID LOW IMPEDANCE PATH.
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |