US3163748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data checking apparatus
Assignee: Unisys Corp
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Filing: 1961-11-21
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Granted: 1964-12-29
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Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert H Schafer
- 👤 David C Schlick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:33
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/08; G06F11/10; G06F11/1008; G06F11/1012; G06F11/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
IN A CYCLICALLY OPERABLE ACCOUNTING MACHINE FOR CALCULATING A CHECK DIGIT FOR A MULTIDIGIT NUMBER TO WHICH THE DIGIT TO BE CALCULATED IS TO BE ASSIGNED, SAID MACHINE HAVING NUMERICAL INPUT MEANS FOR STORAGE OF INFORMATION DURING A FIRST CYCLE OF OPERATION OF SAID ACCOUNTING MACHINE AND PULSE EMITTING AND ENCODING ELEMENTS TO CONVERT THE NUMERICAL REPRESENTATIONS OF THE MULTIDIGIT AMOUNTS TO A FIRST SERIES OF PULSES ACCORDING TO A PREDETERMINED CODE, A COUNTER OPERABLY CONNECTED TO SAID ENCODER TO RECEIVE SERIALLY THE PULSE TRAINS FROM SAID ENCODER, SAID COUNTER CYCLICALLY OPERABLE TO THE BASE "N" AND PRODUCING AN OUTPUT AND RESETTING ITSELF FOR EVERY "N" COUNT, A BISTABLE CONTROL MEANS OPERBLY CONNECTED TO SAID ENCODER AND SAID COUNTER AND RECEIVING SAID FIRST SERIES OF PULSES FROM SAID ENCODER AND THE "N" COUNT OUTPUTS FROM SAID COUNTER, SAID CONTROL MEANS TRIGGERED TO ONE OF ITS STABLE STATES BY SAID FIRST SERIES OF PULSES AND TO ITS SECOND STABLE STATE BY SAID "N" COUNT OUTPUTS, COMPLEMENTING PULSE MEANS CONNECTED TO SAID "N" COUNTER
Claim 2
Dependent Claim
172 words
IN A CYCLICALLY OPERABLE ACCOUNTING MACHINE FOR CALCULATING A CHECK DIGIT FOR A MULTIDIGIT NUMBER TO WHICH THE DIGIT TO BE CALCULATED IS TO BE ASSIGNED, SAID MACHINE HAVING NUMERICAL INPUT MEANS FOR STORAGE OF INFORMATION DURING A FIRST CYCLE OF OPERATION OF SAID ACCOUNTING MACHINE AND PULSE EMITTING AND ENCODING ELEMENTS TO CONVERT THE NUMERICAL REPRESENTATIONS OF THE MULTIDIGIT AMOUNTS TO A FIRST SERIES OF PULSES ACCORDING TO A PREDETERMINED CODE, A COUNTER OPERABLY CONNECTED TO SAID ENCODER TO RECEIVE SERIALLY THE PULSE TRAINS FROM SAID ENCODER, SAID COUNTER CYCLICALLY OPERABLE TO THE BASE "N" AND PRODUCING AN OUTPUT AND RESETTING ITSELF FOR EVERY "N" COUNT, A BISTABLE CONTROL MEANS OPERBLY CONNECTED TO SAID ENCODER AND SAID COUNTER AND RECEIVING SAID FIRST SERIES OF PULSES FROM SAID ENCODER AND THE "N" COUNT OUTPUTS FROM SAID COUNTER, SAID CONTROL MEANS TRIGGERED TO ONE OF ITS STABLE STATES BY SAID FIRST SERIES OF PULSES AND TO ITS SECOND STABLE STATE BY SAID "N" COUNT OUTPUTS, COMPLEMENTING PULSE MEANS CONNECTED TO SAID "N" COUNTER
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) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |