US3422255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maximum occurring event determining apparatus
Assignee: International Business Machines Corp
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Filing: 1965-09-29
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Granted: 1969-01-14
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Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Davey L Malaby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:44
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
MAXIMUM OCCURRING EVENT DETERMINING APPARATUS COMPRISING: A PAIR OF SELECTIVELY OPERABLE BIDIRECTIONAL COUNTERS EACH CORRESPONDING TO A PARTICULAR EVENT; MEANS CONNECTED TO PROVIDE A PULSE TO SAID COUNTERS DURING THE OCCURRENCE OF AN EVENT; LOGIC MEANS OPERABLE IN RESPONSE TO THE OCCURRENCE OF AN EVENT AND THE CORRESPONDING COUNTER BEING IN A ZERO CONDITION FOR PROVIDING AN ADDITIVE CONTROL SIGNAL AND OPERABLE IN RESPONSE TO THE OCCURRENCE OF AN EVENT AND THE CORRESPONDING COUNTER BEING IN A NON-ZERO CONDITION FOR PROVIDING A SUBTRACTIVE CONTROL SIGNAL; AND MEANS CONNECTED TO SAID LOGIC MEANS AND SAID COUNTERS FOR APPLYING SAID ADDITIVE CONTROL SIGNAL TO SAID COUNTER CORRESPONDING TO THE NON-OCCURRING EVENT AND APPLYING SAID SUBTRACTIVE CONTROL SIGNAL TO SAID COUNTER CORRESPONDING TO THE OCCURRING EVENT.
Claim 2
Dependent Claim
123 words
MAXIMUM OCCURRING EVENT DETERMINING APPARATUS COMPRISING: A PAIR OF SELECTIVELY OPERABLE BIDIRECTIONAL COUNTERS EACH CORRESPONDING TO A PARTICULAR EVENT; MEANS CONNECTED TO PROVIDE A PULSE TO SAID COUNTERS DURING THE OCCURRENCE OF AN EVENT; LOGIC MEANS OPERABLE IN RESPONSE TO THE OCCURRENCE OF AN EVENT AND THE CORRESPONDING COUNTER BEING IN A ZERO CONDITION FOR PROVIDING AN ADDITIVE CONTROL SIGNAL AND OPERABLE IN RESPONSE TO THE OCCURRENCE OF AN EVENT AND THE CORRESPONDING COUNTER BEING IN A NON-ZERO CONDITION FOR PROVIDING A SUBTRACTIVE CONTROL SIGNAL; AND MEANS CONNECTED TO SAID LOGIC MEANS AND SAID COUNTERS FOR APPLYING SAID ADDITIVE CONTROL SIGNAL TO SAID COUNTER CORRESPONDING TO THE NON-OCCURRING EVENT AND APPLYING SAID SUBTRACTIVE CONTROL SIGNAL TO SAID COUNTER CORRESPONDING TO THE OCCURRING EVENT.
References Cited (Backward Citations)
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US3166733A
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US3086708A
Cited
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US3257549A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |