US3264529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically controlled stepping switch
Assignee: AT&T Inc
•
Filing: 1963-01-11
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Granted: 1966-08-02
•
Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Terrell N Lowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
H; H01; H01H; H01H63/00; H01H63/16; H01H63/18; H01H63/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A SWITCHING DEVICE COMPRISING A CLOSED MAGNETIC ELEMENT COMPRISING REMANENT MAGNETIC MEANS, A PLURALITY OF CONTACT MEANS MAGNETICALLY COUPLED TO SAID ELEMENT AND DISTRIBUTED ALONG THE PERIPHERY OF SAID ELEMENT, A PLURALITY OF CONTROL WINDINGS COUPLED TO SAID ELEMENT INTERMEDIATE SAID CONTACT MEANS, AND MEANS FOR SELECTIVELY ENERGIZING SAID CONTROL WINDINGS TO ORIENT SAID ELEMENT IN A MAGNETIC CONDITION FOR PROVIDING FLUX FLOW THROUGH SELECTED PAIRS OF SAID CONTACT MEANS TO INTERCONNECT SAID SELECTED PAIRS OF ACTUATED CONTACT MEANS.
References Cited (Backward Citations)
US3134055A
Cited
US3191152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |