US3254327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential magnetic devices
Assignee: AT&T Inc
•
Filing: 1962-12-27
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Granted: 1966-05-31
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Freimanis Laimons
- 👤 Philip G Ridinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:58
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/27
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
A MAGNETIC BINARY CELL COMPRISING A SOURCE OF INPUT PULSES OF A FIRST AMPLITUDE, FIRST AND SECOND PERMANENT MAGNETIC MEANS, A PLURALITY OF WINDINGS RESPONSIVE TO THE PASSAGE OF SAID INPUT PULSES THERETHROUGH TO SELECTIVELY ESTABLISH FIRST AND SECOND OPPOSITELY DIRECTED MAGNETIC FIELDS, REMANENT MAGNETIC MEANS ADJACENT SAID WINDINGS RESPONSIVE TO THE PASSAGE OF SAID PULSES THROUGH SAID WINDINGS, TRANSFER CONTACT MEANS FOR SELECTIVELY ASSUMING ONE OF A FIRST AND SECOND CONFIGURATIONS CONTIGUOUS TO SAID FIRST AND SECOND PERMANENT MGNETIC MEANS RESPECTIVELY IN RESPONSE TO THE FLOW OF MAGNETIC FLUX THERETHROUGH FROM SAID REMANENT MAGNETIC MEANS ONLY AFTER THE TERMINATION OF EACH OF SAID INPUT PULSES AND INDEPENDENTLY OF THE DURATION THEREOF AND FOR THEREAFTER STERRING SUBSEQUENT ONES OF SAID INPUT PULSES TO SELECTED ONES OF SAID WINDINGS, AND OUTPUT MEANS FOR PROVIDING AN EXTERNAL INDICATION OF THE SAID SELECTIVELY ASSUMED CONFIGURATIONS OF SAID CONTACT MEANS.
References Cited (Backward Citations)
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |