Patent US2708928A successfully refreshed from Google Patents.
Patent US3339183A successfully refreshed from Google Patents.
US3339183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copy memory for a digital processor
Assignee: Unisys Corp
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Filing: 1964-11-16
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Granted: 1967-08-29
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robert V Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:35
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; G06F12/12; G06F12/121; G06F12/122; G06F12/0802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A COMPUTER SYSTEM, A FIRST MEMORY UNIT FOR STORING A LARGE NUMBER OF DIGITALLY CODED WORDS IN ADDRESSABLE STORAGE LOCATIONS, A HIGH SPEED COPY MEMORY INCLUDING A SECOND MEMORY UNIT FOR STORING A SMALL NUMBER OF DIGITALLY CODED WORDS, AN ASSOCIATIVE MEMORY FOR STORING A CORRESPONDING NUMBER OF ADDRESSES, THE ASSOCIATIVE MEMORY MAKING A COMPARISON BETWEEN AN ADDRESS WORD APPLIED TO THE INPUT AND EACH OF THE ADDRESSES STORED THEREIN FOR EMERGIZING A DIFFERENT OUTPUT DEPENDING ON THE LOCATION OF AN ADDRESS IN THE ASSOCIATIVE MEMORY ON WHICH A COMPARISON EXISTS WITH THE ADDRESS WORD APPLIED TO THE INPUT, MEANS SELECTIVELY RESPONSIVE TO THE DIFFERENT OUTPUTS OF THE ASSOCIATIVE MEMORY FOR SELECTING A CORRESPONDING LOCATION IN THE SECOND MEMORY, A PROCESSOR INCLUDING MEANS FOR INITIATING A MEMORY ACCESS TO THE FIRST MEMORY FOR READING OUT A WORD FROM A DESIGNATED ADDRESS IN THE FIRST MEMORY, MEANS FOR APPLYING THE ADDRESS TO THE INPUT OF THE ASSOCIATIVE MEMORY AT THE START OF THE MEMORY ACCESS, MEANS RESPONSIVE TO AN OUTPUT SIGNAL FROM THE ASSOCIATIVE MEMORY FOR INTERRUPTING THE MEMORY ACCESS TO THE FIRST MEMORY, MEANS FOR READING OUT THE WORD FROM
Claim 2
Dependent Claim
190 words
A COMPUTER SYSTEM, A FIRST MEMORY UNIT FOR STORING A LARGE NUMBER OF DIGITALLY CODED WORDS IN ADDRESSABLE STORAGE LOCATIONS, A HIGH SPEED COPY MEMORY INCLUDING A SECOND MEMORY UNIT FOR STORING A SMALL NUMBER OF DIGITALLY CODED WORDS, AN ASSOCIATIVE MEMORY FOR STORING A CORRESPONDING NUMBER OF ADDRESSES, THE ASSOCIATIVE MEMORY MAKING A COMPARISON BETWEEN AN ADDRESS WORD APPLIED TO THE INPUT AND EACH OF THE ADDRESSES STORED THEREIN FOR EMERGIZING A DIFFERENT OUTPUT DEPENDING ON THE LOCATION OF AN ADDRESS IN THE ASSOCIATIVE MEMORY ON WHICH A COMPARISON EXISTS WITH THE ADDRESS WORD APPLIED TO THE INPUT, MEANS SELECTIVELY RESPONSIVE TO THE DIFFERENT OUTPUTS OF THE ASSOCIATIVE MEMORY FOR SELECTING A CORRESPONDING LOCATION IN THE SECOND MEMORY, A PROCESSOR INCLUDING MEANS FOR INITIATING A MEMORY ACCESS TO THE FIRST MEMORY FOR READING OUT A WORD FROM A DESIGNATED ADDRESS IN THE FIRST MEMORY, MEANS FOR APPLYING THE ADDRESS TO THE INPUT OF THE ASSOCIATIVE MEMORY AT THE START OF THE MEMORY ACCESS, MEANS RESPONSIVE TO AN OUTPUT SIGNAL FROM THE ASSOCIATIVE MEMORY FOR INTERRUPTING THE MEMORY ACCESS TO THE FIRST MEMORY, MEANS FOR READING OUT THE WORD FROM
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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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |