Patent US3217316A successfully refreshed from Google Patents.
US3217316A
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Assignee: International Business Machines Corp
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Filing: 1961-12-18
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Granted: 1965-11-09
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Kurt M Trampel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:43
CPC Classifications
H; H03; H03M; H03M5/00; H03M5/02; H03M5/16; H03M5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A CONVERTER OF FIRST AND SECOND INPUT SIGNALS EACH BEING CAPABLE OF RESIDING AT A FIRST OR SECOND VOLTAGE LEVEL TO AN OUTPUT SIGNAL CAPABLE OF RESIDING AT A FIRST, SECOND OR THIRD VOLTAGE LEVEL, WHEREIN SAID FIRST AND SECOND LEVELS OF SAID OUTPUT SIGNAL CORRESPOND SUBSTANTIALLY TO SAID FIRST AND SECOND LEVELS RESPECTIVELY OF SAID FIRST INPUT SIGNAL, COMPRISING AN INPUT CIRCUIT FOR SUPPLING SAID INPUT SIGNALS, AN OUTPUT CIRCUIT FOR PRODUCING SAID OUTPUT SIGNAL, A VOLTAGE SUPPLY OF PREDETERMINED POLARITY, AND CURRENT SWITCHING MEANS CONNECTED TO SAID INPUT CIRCUIT, SAID OUTPUT CIRCUIT AND SAID VOLTAGE SUPPLY FOR RESPONDING TO SAID INPUT SIGNALS AT THE FIRST LEVEL TO PRODUCE THE FIRST LEVEL OUTPUT SIGNAL, FOR RESPONDING TO SAID FIRST INPUT SIGNAL AT THE SECOND LEVEL AND SAID SECOND INPUT SIGNAL AT THE FIRST LEVEL TO PRODUCE SAID SECOND LEVEL OUTPUT SIGNAL, AND FOR RESPONDING TO SAID FIRST INPUT SIGNAL AT THE FIRST LEVEL AND SAID SECOND INPUT SIGNAL AT THE SECOND LEVEL TO PRODUCE SAID THIRD LEVEL OUTPUT SIGNAL, SAID THIRD LEVEL BEING DETERMINED BY SAID VOLTAGE SUPPLY.
Claim 2
Dependent Claim
179 words
A CONVERTER OF FIRST AND SECOND INPUT SIGNALS EACH BEING CAPABLE OF RESIDING AT A FIRST OR SECOND VOLTAGE LEVEL TO AN OUTPUT SIGNAL CAPABLE OF RESIDING AT A FIRST, SECOND OR THIRD VOLTAGE LEVEL, WHEREIN SAID FIRST AND SECOND LEVELS OF SAID OUTPUT SIGNAL CORRESPOND SUBSTANTIALLY TO SAID FIRST AND SECOND LEVELS RESPECTIVELY OF SAID FIRST INPUT SIGNAL, COMPRISING AN INPUT CIRCUIT FOR SUPPLING SAID INPUT SIGNALS, AN OUTPUT CIRCUIT FOR PRODUCING SAID OUTPUT SIGNAL, A VOLTAGE SUPPLY OF PREDETERMINED POLARITY, AND CURRENT SWITCHING MEANS CONNECTED TO SAID INPUT CIRCUIT, SAID OUTPUT CIRCUIT AND SAID VOLTAGE SUPPLY FOR RESPONDING TO SAID INPUT SIGNALS AT THE FIRST LEVEL TO PRODUCE THE FIRST LEVEL OUTPUT SIGNAL, FOR RESPONDING TO SAID FIRST INPUT SIGNAL AT THE SECOND LEVEL AND SAID SECOND INPUT SIGNAL AT THE FIRST LEVEL TO PRODUCE SAID SECOND LEVEL OUTPUT SIGNAL, AND FOR RESPONDING TO SAID FIRST INPUT SIGNAL AT THE FIRST LEVEL AND SAID SECOND INPUT SIGNAL AT THE SECOND LEVEL TO PRODUCE SAID THIRD LEVEL OUTPUT SIGNAL, SAID THIRD LEVEL BEING DETERMINED BY SAID VOLTAGE SUPPLY.
References Cited (Backward Citations)
US2850647A
Cited
US2879411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |