Patent US2800585A successfully refreshed from Google Patents.
US2800585A
Expired / Lapsed
US
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Electronic switch
Assignee: Sunoco Inc
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Filing: 1954-01-13
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Granted: 1957-07-23
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Expires: 1974-01-13
Abstract
No abstract record available.
Inventors
- 👤 Omar L Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:16
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN ELECTONIC SWITCH COMPRISING A PAIR OF FIRST TERMINALS, PARALLEL CIRCUITS BETWEEN SAID FIRST TERMINALS HAVING INTERMEDIATE POINTS JOINED RESPECTIVELY TO SECOND TERMINALS TO BE SELECTIVELY CONNECTED AND DISCONNECTED, SAID CIRCUITS INCLUDING UNIDIDRECTIONALLY CONDUCTIVE ELEMENTS MEANS PROVIDING A SWITCHING SIGNAL, A DIFFERENTIAL AMPLIFIER HAVING ONE INPUT CONNECTED TO ONE OF SAID SECOND TERMINALS, AND HAVING ITS OUTPUT CONNECTED TO ONE OF SAID FIRST TERMINALS, RESISTANCE MEANS CONNECTED BETWEEN SAID OUTPUT OF THE DIFFERENTIAL AMPLIFIER AND SAID MEANS PROVIDING A SWITCHING SIGNAL, SAID DIFFERENTIAL AMPLIFIER HAVING ITS OTHER INPUT CONNECTED TO AN INTERMEDIATE POINT OF SAID RESISTANCE MEANS, AND SAID MEANS PROVIDING A SWITCHING SIGNAL BEING CONNECTED TO THE OTHER OF SAID FIRST TERMINALS.
Claim 2
Dependent Claim
113 words
AN ELECTONIC SWITCH COMPRISING A PAIR OF FIRST TERMINALS, PARALLEL CIRCUITS BETWEEN SAID FIRST TERMINALS HAVING INTERMEDIATE POINTS JOINED RESPECTIVELY TO SECOND TERMINALS TO BE SELECTIVELY CONNECTED AND DISCONNECTED, SAID CIRCUITS INCLUDING UNIDIDRECTIONALLY CONDUCTIVE ELEMENTS MEANS PROVIDING A SWITCHING SIGNAL, A DIFFERENTIAL AMPLIFIER HAVING ONE INPUT CONNECTED TO ONE OF SAID SECOND TERMINALS, AND HAVING ITS OUTPUT CONNECTED TO ONE OF SAID FIRST TERMINALS, RESISTANCE MEANS CONNECTED BETWEEN SAID OUTPUT OF THE DIFFERENTIAL AMPLIFIER AND SAID MEANS PROVIDING A SWITCHING SIGNAL, SAID DIFFERENTIAL AMPLIFIER HAVING ITS OTHER INPUT CONNECTED TO AN INTERMEDIATE POINT OF SAID RESISTANCE MEANS, AND SAID MEANS PROVIDING A SWITCHING SIGNAL BEING CONNECTED TO THE OTHER OF SAID FIRST TERMINALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |