Patent US3129289A successfully refreshed from Google Patents.
US3129289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic line circuit
Assignee: TDK Micronas GmbH
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Filing: 1959-06-26
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Granted: 1964-04-14
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Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 Donald F Seemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:37
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/2272
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN ELECTRONIC LINE CIRCUIT COMPRISING A PAIR OF LINE CONDUCTORS, A PAIR OF TRANSISTORS HAVING COMPLEMENTARY SYMMETRY, ONE OF SAID LINE CONDUCTORS BEING COUPLED TO APPLY BIASING POTENTIAL TO ONE OF SAID TRANSISTORS, THE OTHER OF SAID LINE CONDUCTORS BEING COUPLED TO APPLY BIASING POTENTIAL TO THE OTHER OF SAID TRANSISTORS, MEANS FOR SWITCHING SAID TRANSISTORS BETWEEN NON-CONDUCTIVE AND CONDUCTIVE STATES RESPONSIVE TO THE COMPLETION OR INTERRUPTION OF A LOOP ACROSS A PAIR OF CONDUCTORS, AND MEANS RESPONSIVE TO
Claim 2
Dependent Claim
79 words
AN ELECTRONIC LINE CIRCUIT COMPRISING A PAIR OF LINE CONDUCTORS, A PAIR OF TRANSISTORS HAVING COMPLEMENTARY SYMMETRY, ONE OF SAID LINE CONDUCTORS BEING COUPLED TO APPLY BIASING POTENTIAL TO ONE OF SAID TRANSISTORS, THE OTHER OF SAID LINE CONDUCTORS BEING COUPLED TO APPLY BIASING POTENTIAL TO THE OTHER OF SAID TRANSISTORS, MEANS FOR SWITCHING SAID TRANSISTORS BETWEEN NON-CONDUCTIVE AND CONDUCTIVE STATES RESPONSIVE TO THE COMPLETION OR INTERRUPTION OF A LOOP ACROSS A PAIR OF CONDUCTORS, AND MEANS RESPONSIVE TO
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |