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Patent US3289168A successfully refreshed from Google Patents.
US3289168A
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Interrupt control system
Assignee: International Business Machines Corp
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Filing: 1962-07-31
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Granted: 1966-11-29
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Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 Charles A Walton
- 👤 Richard W Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/20; G06F13/24; G06F13/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN AN INTERRUPT CONTROL SYSTEM FOR USE WITH A COMPUTER HAVING AN INTERNALLY STORED PROGRAM, AUXILIARY CONTROL MEANS FOR SIGNALLING AN INTERRUPT TO SAID COMPUTER IN RESPONSE TO AN EXTERNAL EVENT COMPRISING: MEANS FOR MONITORING A PLURALITY OF INTERRUPT CONDITIONS, COUNTER MEANS FOR SEQUENTIALLY SCANNING SAID MONITORING MEANS, CONTROL MEANS FOR HOLDING SAID COUNTER MEANS AT A POSITION INDICATING AN INTERRUPT CONDITION, MULTIPOSITION REGISTER MEANS FOR INDICATING THE POSITION OF SAID COUNTER MEANS TO SAID COMPUTER, MEANS FOR TRANSFERRING THE POSITION OF SAID COUNTER MEANS INTO PREDETERMINED POSITIONS OF SAID REGISTER WHILE HOLDING ALL OTHER POSITIONS OF SAID REGISTER UN-
Claim 2
Dependent Claim
100 words
IN AN INTERRUPT CONTROL SYSTEM FOR USE WITH A COMPUTER HAVING AN INTERNALLY STORED PROGRAM, AUXILIARY CONTROL MEANS FOR SIGNALLING AN INTERRUPT TO SAID COMPUTER IN RESPONSE TO AN EXTERNAL EVENT COMPRISING: MEANS FOR MONITORING A PLURALITY OF INTERRUPT CONDITIONS, COUNTER MEANS FOR SEQUENTIALLY SCANNING SAID MONITORING MEANS, CONTROL MEANS FOR HOLDING SAID COUNTER MEANS AT A POSITION INDICATING AN INTERRUPT CONDITION, MULTIPOSITION REGISTER MEANS FOR INDICATING THE POSITION OF SAID COUNTER MEANS TO SAID COMPUTER, MEANS FOR TRANSFERRING THE POSITION OF SAID COUNTER MEANS INTO PREDETERMINED POSITIONS OF SAID REGISTER WHILE HOLDING ALL OTHER POSITIONS OF SAID REGISTER UN-
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |