US3108256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logical clearing of memory devices
Assignee: International Business Machines Corp
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Filing: 1958-12-30
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Granted: 1963-10-22
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Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Buchholz Werner
- 👤 Lawrence E Kanter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:45
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/14; G06F12/1416; G06F12/1425; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN AN INFORMATION-HANDLING SYSTEM, IN COMBINATION, A PLURALITY OF REGISTERS FOR STORING INFORMATION, EACH SAID REGISTER COMPRISING MEANS FOR STORING A PLURALITY OF BITS REPRESENTING THE INFORMATION TO BE SORTED TOGETHER WITH A STATUS BIT INDICATING A "MAY READ" STATUS OR A "DON''T READ" STATUS ASSOCIATED WITH THE INFORMATION STORED, SENSING MEANS FOR SENSING EACH BIT ASSOCIATED WITH A GIVEN SELECTED REGISTER INCLUDING SAID STATUS BIT, MEANS CONTROLLED BY THE SECOND CHARACTER OF SAID STATUS BIT FOR SELECTIVELY TRANSMITTING OR BLOCKING THE TRANSMISSION OF THE SENSED INFORMATION CONTENT OF THE SELECTED REGISTER, AND MEANS FOR SETTING SUBSTANTIALLY SIMULTANEOUSLY THE STATUS BITS OF A GROUP OF REGISTERS TO INDICATE A "DON''T READ" STATUS REGARDLESS OF THE ACTUAL INFORMATION CONTENT OF THE INDIVIDUAL STORAGE REGISTERS OF SAID GROUP.
Claim 2
Dependent Claim
126 words
IN AN INFORMATION-HANDLING SYSTEM, IN COMBINATION, A PLURALITY OF REGISTERS FOR STORING INFORMATION, EACH SAID REGISTER COMPRISING MEANS FOR STORING A PLURALITY OF BITS REPRESENTING THE INFORMATION TO BE SORTED TOGETHER WITH A STATUS BIT INDICATING A "MAY READ" STATUS OR A "DON''T READ" STATUS ASSOCIATED WITH THE INFORMATION STORED, SENSING MEANS FOR SENSING EACH BIT ASSOCIATED WITH A GIVEN SELECTED REGISTER INCLUDING SAID STATUS BIT, MEANS CONTROLLED BY THE SECOND CHARACTER OF SAID STATUS BIT FOR SELECTIVELY TRANSMITTING OR BLOCKING THE TRANSMISSION OF THE SENSED INFORMATION CONTENT OF THE SELECTED REGISTER, AND MEANS FOR SETTING SUBSTANTIALLY SIMULTANEOUSLY THE STATUS BITS OF A GROUP OF REGISTERS TO INDICATE A "DON''T READ" STATUS REGARDLESS OF THE ACTUAL INFORMATION CONTENT OF THE INDIVIDUAL STORAGE REGISTERS OF SAID GROUP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |