US3094614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full adder and subtractor using nor logic
Assignee: International Business Machines Corp
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Filing: 1961-12-14
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Granted: 1963-06-18
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Expires: 1981-12-14
Abstract
No abstract record available.
Inventors
- 👤 William W Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:03
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/501; G06F7/502; H; H03; H03K; H03K19/00; H03K19/20; H03K19/21; H03K19/212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
AN ADDER CIRCUIT CAPABLE OF ACCEPTING A FIRST, A SECOND AND A THIRD BINARY SIGNAL COMPRISING: A FIRST, A SECOND, A THIRD, A FOURTH, A FIFTH, A SIXTH AND A SUM NOR CIRCUIT; AND, CIRCUIT MEANS CONNECTING SAID FIRST AND SECOND BINARY SIGNALS TO SAID FIRST NOR CIRCUIT, SAID FIRST BINARY SIGNAL TO SAID SECOND NOR CIRCUIT, SAID SECOND BINARY SIGNAL TO SAID THIRD NOR CIRCUIT, THE OUTPUT OF SAID FIRST NOR CIRCUIT TO SAID SECOND AND THIRD NOR CIRCUITS, THE OUTPUT OF SAID SECOND AND THIRD NOR CIRCUITS TO SAID FOURTH NOR CIRCUIT, SAID THIRD BINARY SIGNAL TO SAID FOURTH AND FIFTH NOR CIRCUITS, THE OUTPUT OF SAID SECOND AND THIRD NOR CIRCUITS TO SAID SIXTH NOR CIRCUIT, THE OUTPUT OF SAID FOURTH NOR CIRCUIT TO SAID FIFTH AND SIXTH NOR CIRCUITS, AND THE OUTPUTS OF SAID FIFTH AND SIXTH NOR CIRCUITS TO SAID SUM NOR CIRCUIT, WHEREBY THE OUTPUT OF SAID SUM NOR CIRCUIT REPRESENTS THE SUM FUNCTION OF SAID THREE BINARY SIGNALS.
Claim 2
Dependent Claim
165 words
AN ADDER CIRCUIT CAPABLE OF ACCEPTING A FIRST, A SECOND AND A THIRD BINARY SIGNAL COMPRISING: A FIRST, A SECOND, A THIRD, A FOURTH, A FIFTH, A SIXTH AND A SUM NOR CIRCUIT; AND, CIRCUIT MEANS CONNECTING SAID FIRST AND SECOND BINARY SIGNALS TO SAID FIRST NOR CIRCUIT, SAID FIRST BINARY SIGNAL TO SAID SECOND NOR CIRCUIT, SAID SECOND BINARY SIGNAL TO SAID THIRD NOR CIRCUIT, THE OUTPUT OF SAID FIRST NOR CIRCUIT TO SAID SECOND AND THIRD NOR CIRCUITS, THE OUTPUT OF SAID SECOND AND THIRD NOR CIRCUITS TO SAID FOURTH NOR CIRCUIT, SAID THIRD BINARY SIGNAL TO SAID FOURTH AND FIFTH NOR CIRCUITS, THE OUTPUT OF SAID SECOND AND THIRD NOR CIRCUITS TO SAID SIXTH NOR CIRCUIT, THE OUTPUT OF SAID FOURTH NOR CIRCUIT TO SAID FIFTH AND SIXTH NOR CIRCUITS, AND THE OUTPUTS OF SAID FIFTH AND SIXTH NOR CIRCUITS TO SAID SUM NOR CIRCUIT, WHEREBY THE OUTPUT OF SAID SUM NOR CIRCUIT REPRESENTS THE SUM FUNCTION OF SAID THREE BINARY SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |