Patent US3196260A successfully refreshed from Google Patents.
US3196260A
Expired / Lapsed
US
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Adder
Assignee: International Business Machines Corp
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Filing: 1961-05-03
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Granted: 1965-07-20
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 John M Pugmire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4912; G06F11/00; G06F11/07; G06F11/08; G06F11/085; G06F11/16; G06F11/1608; G06F2207/00; G06F2207/491; G06F2207/4914
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A 2-OUT-OF-5 CODED COMPUTER SYSTEM COMPRISING: (A) A FIRST OPERAND BUS; (B) A SECOND OPERAND BUS; (C) A SUM BUS; (D) A VALIDITY CHECK MEANS ASSOCIATED WITH SAID SUM BUS FOR SIGNALLING ERROR UPON DEFAULT OF 2-OUT-OF-5 CODE RULES, AND (E) AN ADDER CONNECTED TO SAID FIRST OPERAND, SECOND OPERAND AND SUM BUSES FOR PRODUCING A FINAL SUM ON SAID SUM BUS IN 2-OUT-OF-5 CODE IN RESPONSE ADDED COMPRISING: (A) CARRY MECHANISM FOR PRODUCING CARRY DESIG(A) CARRY MECNANISM FOR PRODUCING CARRY DESIGNATIONS IN RESPONSE TO CARRY OUT SITUATIONS FROM PREVIOUS ORDERS; (B) A SUMMATION FUNCTION TERM GENERATOR FOR PRODUCING LOGICAL AND AND OR CORRELATIONS BETWEEN EQUAL WEIGHT ADDED AND AUGEND 2-OUT-OF5 BITS AS FOLLOWS:
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |