US3247488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital computing system
Assignee: Unisys Corp
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Filing: 1961-03-24
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Granted: 1966-04-19
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Welsh Herbert Frazer
- 👤 Jr John Presper Eckert
- 👤 William F Schmitt
- 👤 Lawrence F Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/30003; G06F9/30072; G06F13/00; G06F13/10; G06F13/12; G06F13/14; G06F13/16; G06F13/18; G06F15/00; G06F15/16; G06F15/76; G06F15/78; G06F9/30076; G06F9/38; G06F9/3867
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
IN COMBINATION AN ADDRESSABLE MEMORY SYSTEM, COMPRISING A PLURALITY OF INDEPENDENT MEMORY UNITS, EACH MEMORY UNIT HAVING THE SAME FINITE ACCESS PERIOD AND A PLURALITY OF INFORMATION HANDLING UNITS CONNECTED TO SAID MEMORY SYSTEM FOR COMMUNICATING THEREWITH, EACH OF SAID INFORMATION HANDLING UNITS HAVING MEANS FOR SELECTIVELY REPETITIVELY COMMUNICATING INFORMATION TO OR FROM SAID MEMORY SYSTEM AT A DIFFERENT, WITH RESPECT TO OTHER INFORMATION HANDLING UNITS, PREDETERMINED TIME POSITION WITHIN SAID ACCESS PERIOD.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |