Patent EP0698874A1 successfully refreshed from Google Patents.
Patent US3311887A successfully refreshed from Google Patents.
US3311887A
Expired / Lapsed
US
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File memory system with key to address transformation apparatus
Assignee: International Business Machines Corp
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Filing: 1963-04-12
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Granted: 1967-03-28
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Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Muroga Saburo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:32
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/901; G06F16/9014; Y; Y10; Y10S; Y10S707/00; Y10S707/99951; Y10S707/99952; Y10S707/99953; Y10S707/99955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A FILE MEMORY SYSTEM OPERABLE IN A KEY TO ADDRESS TRANSFORMATION MODE COMPRISING; FILE MEMORY MEANS FOR STORING INFORMATION RECORDS AT ADDRESSES THEREIN; MEANS FOR INTRODUCING KEYS CHARACTERIZED AS BINARY CODES IN A GROUP ARRAY TO SAID SYSTEM SELECTIVELY;
Claim 2
Dependent Claim
39 words
A FILE MEMORY SYSTEM OPERABLE IN A KEY TO ADDRESS TRANSFORMATION MODE COMPRISING; FILE MEMORY MEANS FOR STORING INFORMATION RECORDS AT ADDRESSES THEREIN; MEANS FOR INTRODUCING KEYS CHARACTERIZED AS BINARY CODES IN A GROUP ARRAY TO SAID SYSTEM SELECTIVELY;
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |