Patent US3310785A successfully refreshed from Google Patents.
US3310785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data processing unit for selectively controlling access to memory by external apparatus
Assignee: General Electric Co
•
Filing: 1964-05-04
•
Granted: 1967-03-21
•
Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 John F Couleur
- 👤 Philip F Gudenschwager
- 👤 William A Shelly
- 👤 David L Bahrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/48; G06F9/4806; G06F9/4812; G06F13/00; G06F13/10; G06F13/12; G06F13/14; G06F13/20; G06F13/24; G06F13/26; G06F15/00; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A DATA PROCESSING SYSTEM, THE COMBINATION COMPRISING: A DATA PROCESSING UNIT COMPRISING COMMAND EXECUTING MEANS, NORMALLY ENABLED, FOR EXECUTING IN SEQUENCE A PLURALITY OF DIFFERENT OPERATIONS ON DATA RECEIVED BY SAID SYSTEM; A DATA HANDLING UNIT DISPOSED EXTERNALLY TO SAID DATA PROCESSING UNIT, SAID DATA HANDLING UNIT PROVIDING AN INTERRUPT SIGNAL WHEN SAID DATA HANDLING UNIT MUST COMMUNICATE WITH SAID DATA PROCESSING UNIT; SAID DATA PROCESSING UNIT FURTHER COMPRISING INTERRUPT MEANS, NORMALLY ENABLED, FOR RESPONDING TO AN INTERRUPT SIGNAL FOR DISABLING OPERATION OF SAID COMMAND EXECUTING MEANS, MEANS FOR COUPLING SAID INTERRUPT SIGNAL TO SAID INTERRUPT MEANS, MEANS FOLLOWING DISABLEMENT OF SAID COMMAND EXECUTING MEANS FOR PROVIDING COMMUNICATION BETWEEN SAID DATA HANDLING UNIT AND SAID DATA PROCESSING UNIT, AND MEANS FOR DISABLING SAID INTERRUPT MEANS.
Claim 2
Dependent Claim
126 words
IN A DATA PROCESSING SYSTEM, THE COMBINATION COMPRISING: A DATA PROCESSING UNIT COMPRISING COMMAND EXECUTING MEANS, NORMALLY ENABLED, FOR EXECUTING IN SEQUENCE A PLURALITY OF DIFFERENT OPERATIONS ON DATA RECEIVED BY SAID SYSTEM; A DATA HANDLING UNIT DISPOSED EXTERNALLY TO SAID DATA PROCESSING UNIT, SAID DATA HANDLING UNIT PROVIDING AN INTERRUPT SIGNAL WHEN SAID DATA HANDLING UNIT MUST COMMUNICATE WITH SAID DATA PROCESSING UNIT; SAID DATA PROCESSING UNIT FURTHER COMPRISING INTERRUPT MEANS, NORMALLY ENABLED, FOR RESPONDING TO AN INTERRUPT SIGNAL FOR DISABLING OPERATION OF SAID COMMAND EXECUTING MEANS, MEANS FOR COUPLING SAID INTERRUPT SIGNAL TO SAID INTERRUPT MEANS, MEANS FOLLOWING DISABLEMENT OF SAID COMMAND EXECUTING MEANS FOR PROVIDING COMMUNICATION BETWEEN SAID DATA HANDLING UNIT AND SAID DATA PROCESSING UNIT, AND MEANS FOR DISABLING SAID INTERRUPT MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |