US3274554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer system
Assignee: Unisys Corp
•
Filing: 1961-02-15
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Granted: 1966-09-20
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Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Warren W Hopper
- 👤 Stanley J Pezely
- 👤 Jr Leonard H Sichel
- 👤 Ronald B Lounsbury
- 👤 Patricia V Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
171 words
IN A SYSTEM COMPRISING REQUESTOR UNITS AND A UNIT TO WHICH A REQUEST IS MADE, HOLD MATRIX MEANS OPERABLE UPON MORE THAN ONE REQUEST FOR THE SAID REQUESTED UNIT AND ON BUSY CONDITIONS OF SAID REQUESTED UNIT, SAID MATRIX COMPRISING AN OR GATE FOR EACH REQUESTOR UNIT, AN AND GATE FOR SAID REQUESTED UNIT FOR EACH OF THE REQUESTOR UNITS, MEANS TO PROVIDE A FIRST INPUT INDICATIVE OF REQUESTED UNIT ADDRESS FROM EACH OF SAID REQUESTOR UNITS TO EACH OF SAID AND GATES, AND A SECOND COMMON INPUT TO EACH OF SAID AND GATES RESPONSIVE TO BUSY CONDITION OF SAID ADDRESSED UNIT, EACH OF SAID REQUESTOR UNIT OR GATES BEING RESPONSIVE TO ITS RESPECTIVE AND GATE, SAID OR GATE HAVING AN INPUT RESPONSIVE TO A SIGNAL INDICATING THAT SAID REQUESTOR UNIT IS TO AWAIT OPERATION UPON ITS REQUEST, EACH OF SAID OR GATES HAVING OUTPUT MEANS TO PROVIDE A SIGNAL TO ITS CORRESPONDING UNIT TO ENABLE SAID UNIT TO SENSE SAID OR GATE OUTPUT AND TAKE APPROPRIATE HOLDING ACTION. HOLDING ACTION.
References Cited (Backward Citations)
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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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |