US3141151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape storage system for digital computers wherein an indication of the number of bits in a message is stored with the message
Assignee: Unisys Corp
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Filing: 1959-03-23
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Granted: 1964-07-14
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Paul R Gilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:00
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A MAGNETIC TAPE STORAGE SYSTEM FOR A DIGITAL COMPUTER IN WHICH WORDS ARE TRANSFERRED SERIALLY TO AND FROM THE MAGNETIC TAPE IN BLOCKS, COMPRISING AN ADDRESSABLE MEMORY FOR STORING A PLURALITY OF WORDS, MEANS FOR STORING AT LEAST ONE PREFACE DIGIT INDICATIVE OF THE NUMBER OF WORDS IN A BLOCK TO BE RECORDED ON THE MAGNETIC TAPE, MEANS SYNCHRONIZED WITH MOVEMENT OF THE MAGNETIC TAPE FOR TRANSFERRING WORDS IN SUCCESSIVE ADDRESS LOCATIONS IN THE MEMORY TO THE MAGNETIC TAPE INCLUDING MEANS FOR INITIALLY TRANSFERRING THE PREFACE DIGIT FROM SAID PREFACE DIGIT STORING MEANS TO THE MAGNETIC TAPE, WHEREBY A BLOCK RECORDED ON TAPE IS PRECEDED BY AT LEAST ONE PREFACE DIGIT INDICATING THE NUMBER OF WORDS IN THE BLOCK, MEANS FOR COUNTING THE NUMBER OF WORDS TRANSFERRED FROM MEMORY
Claim 2
Dependent Claim
129 words
A MAGNETIC TAPE STORAGE SYSTEM FOR A DIGITAL COMPUTER IN WHICH WORDS ARE TRANSFERRED SERIALLY TO AND FROM THE MAGNETIC TAPE IN BLOCKS, COMPRISING AN ADDRESSABLE MEMORY FOR STORING A PLURALITY OF WORDS, MEANS FOR STORING AT LEAST ONE PREFACE DIGIT INDICATIVE OF THE NUMBER OF WORDS IN A BLOCK TO BE RECORDED ON THE MAGNETIC TAPE, MEANS SYNCHRONIZED WITH MOVEMENT OF THE MAGNETIC TAPE FOR TRANSFERRING WORDS IN SUCCESSIVE ADDRESS LOCATIONS IN THE MEMORY TO THE MAGNETIC TAPE INCLUDING MEANS FOR INITIALLY TRANSFERRING THE PREFACE DIGIT FROM SAID PREFACE DIGIT STORING MEANS TO THE MAGNETIC TAPE, WHEREBY A BLOCK RECORDED ON TAPE IS PRECEDED BY AT LEAST ONE PREFACE DIGIT INDICATING THE NUMBER OF WORDS IN THE BLOCK, MEANS FOR COUNTING THE NUMBER OF WORDS TRANSFERRED FROM MEMORY
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |