US3218611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data transfer control device
Assignee: International Business Machines Corp
•
Filing: 1961-04-18
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Granted: 1965-11-16
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 Kilburn Tom
- 👤 Edwards David Beverley George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:22
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; G06F12/12; G06F12/121; G06F12/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN ELECTRONIC DIGITAL COMPUTING MACHINE WHICH INCLUDES AN IMMEDIATE OR HIGH ACCESS SPEED MAIN DATE WORD STORE FOR REGISTERING DATA WORDS, EACH IDENTIFIED BY A PROGRAM IDENTIFICATION ADDRESS, TO BE USED IN CURRENTLY OPERATIVE COMPUTING PROGRAMME, A SECONDARY DATA WORD STORE OF A TYPE IN WHICH THE VARIOUS STORAGE LOCATIONS OR ADDRESSES ARE DESIGNATED BY SECONDARY STORE ADDRESSES AND BECOME AVAIBALE SEQUENTIALLY, TWO-WAY WORD TRANSFER CHANNELS BETWEEN SAID MAIN AND SECONDARY STORES, CONTROL MEANS FOR EFFECTING TRANSFER OF DATA WORDS FROM SAID SECONDARY STORE TO SAID MAIN STORE AND FROM SAID MAIN STORE INTO SAID ONE OF THE ADDRESS LOCATIONS OF SAID SECONDARY STORE WHICH IS ALREADY UNOCCUPIED AND IS NEXT AVAILABLE AFTER THE TIME OF A REQUIREMENT TAO EFFECT TRANSFER, AND DIRECTORY REGISTER MEANS FOR RECORDING THE PROGRAMME IDENTIFICATION ADDRESS OF EACH OF SAID TRANSFERRED DATA WORS AND THE SECONDARY STORE ADDRESS TO WHICH EACH OF SAID DATA WORDS HAS BEEN TRANSFERRED.
Claim 2
Dependent Claim
153 words
AN ELECTRONIC DIGITAL COMPUTING MACHINE WHICH INCLUDES AN IMMEDIATE OR HIGH ACCESS SPEED MAIN DATE WORD STORE FOR REGISTERING DATA WORDS, EACH IDENTIFIED BY A PROGRAM IDENTIFICATION ADDRESS, TO BE USED IN CURRENTLY OPERATIVE COMPUTING PROGRAMME, A SECONDARY DATA WORD STORE OF A TYPE IN WHICH THE VARIOUS STORAGE LOCATIONS OR ADDRESSES ARE DESIGNATED BY SECONDARY STORE ADDRESSES AND BECOME AVAIBALE SEQUENTIALLY, TWO-WAY WORD TRANSFER CHANNELS BETWEEN SAID MAIN AND SECONDARY STORES, CONTROL MEANS FOR EFFECTING TRANSFER OF DATA WORDS FROM SAID SECONDARY STORE TO SAID MAIN STORE AND FROM SAID MAIN STORE INTO SAID ONE OF THE ADDRESS LOCATIONS OF SAID SECONDARY STORE WHICH IS ALREADY UNOCCUPIED AND IS NEXT AVAILABLE AFTER THE TIME OF A REQUIREMENT TAO EFFECT TRANSFER, AND DIRECTORY REGISTER MEANS FOR RECORDING THE PROGRAMME IDENTIFICATION ADDRESS OF EACH OF SAID TRANSFERRED DATA WORS AND THE SECONDARY STORE ADDRESS TO WHICH EACH OF SAID DATA WORDS HAS BEEN TRANSFERRED.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |