US3560935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interrupt apparatus for a modular data processing system
Assignee: Unisys Corp
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Filing: 1968-03-15
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Granted: 1971-02-02
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Expires: 1988-03-15
Abstract
Abstract THE PRESENT APPLICATION DISCLOSES AN INTERRUPT SYSTEM CAPABLE OF USE IN A FULLY MODULAR DATA PROCESSING SYSTEM. IT PROVIDES APPARATUS MEANS FOR ENABLING NOT ONLY RECORDATION AND IMMEDIATE RESPONSIVE RECOGNITION OF A COMPREHENSIVE SET OF INTERRUPT CONDITIONS BUT ALSO FOR RECORDATION WITHOUT IMMEDIATE RESPONSIVE RECOGNITION OF SUCH CONDITIONS. IN ADDITION, IT PROVIDES AN INTERRUPT SYSTEM WHICH IS OPERATIVE IN ITS INTERRUPTED OR CONTROL MODE TO EXECUTE OBJECT PROGRAMS WHICH HERETOFORE COULD BE EXECUTED ONLY IN ITS NORMAL MODE OF OPERATION. IT ALSO DISCLOSES AN INTERRUPT SYSTEM HAVING IMPROVED EXTERNAL INTERRUPT CAPABILITIES ESPECIALLY IN THE MODULE FAIL AREA.
Inventors
- 👤 Leroy W Beers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:13
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/48; G06F9/4806; G06F9/4812
Claims Analysis
Total Claims: 0
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |