Patent US3214739A successfully refreshed from Google Patents.
US3214739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex operation of peripheral equipment
Assignee: Unisys Corp
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Filing: 1962-08-23
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Granted: 1965-10-26
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Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Robert J Gountanis
- 👤 Heideman Albert John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:35
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/16; G06F13/00; G06F13/38; G06F13/40; G06F13/4004; G06F13/4022; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN AN ARRANGEMENT FOR SELECTIVELY COMPLETING ONE OF AT LEAST TWO COMMUNICATION LINKS EACH CONNECTED BETWEEN A PERIPHERAL UNIT AND A DIFFERENT ONE OF AT LEAST TWO DATA PROCESSING MEANS EACH OF WHICH IN TURN CAN ASYNCHRONOUSLY ORIGINATE A CONTROL INDICATION REQUESTING COMMUNICATION BY IT WITH THE PERIPHERAL UNIT, THE INVENTION COMPRISING: (A) A GROUP OF FIRST MEANS EACH INDIVIDUALLY RECEIVING AND STORING A CONTROL INDICATION FROM A DIFFERENT DATA PROCESSING MEANS; (B) A GROUP OF SECOND MEANS EACH INDIVIDUALLY ACTUABLE TO THEREBY SPECIFY COMMUNICATION BETWEEN THE PERIPHERAL UNIT AND A DIFFERENT DATA PROCESSING MEANS; (C) CONTROL MEANS RESPONSIVE TO THE CONCURRENCE OF A CONTROL INDICATION STORED IN ANY SAID FIRST MEANS AND SIGNALS REPRESENTING THAT ALL OF SAID SECOND MEANS UNACTUATED TO THEREBY ACTUATE A SID SECOND MEANS WHICH SPECIFIES COMMUNICATION WITH THE DATA PROCESSING MEANS ORIGINATING AND LAST NAMED CONTROL INDICATION; AND (D) A GROUP OF THIRD MEANS EACH INDIVIDUALLY RESPONSIVE TO A DIFFERENT ACTUATED SECOND MEANS FOR OPERATIVELY COMPLETING THE COMMUNICATION LINK BETWEEN THE PERIPHERAL UNIT AND A DIFFERENT DATA PROCESSING MEANS SPECIFIED BY SAID LAST NAMED DIFFERENT ACTUATED SECOND MEANS.
Claim 2
Dependent Claim
184 words
IN AN ARRANGEMENT FOR SELECTIVELY COMPLETING ONE OF AT LEAST TWO COMMUNICATION LINKS EACH CONNECTED BETWEEN A PERIPHERAL UNIT AND A DIFFERENT ONE OF AT LEAST TWO DATA PROCESSING MEANS EACH OF WHICH IN TURN CAN ASYNCHRONOUSLY ORIGINATE A CONTROL INDICATION REQUESTING COMMUNICATION BY IT WITH THE PERIPHERAL UNIT, THE INVENTION COMPRISING: (A) A GROUP OF FIRST MEANS EACH INDIVIDUALLY RECEIVING AND STORING A CONTROL INDICATION FROM A DIFFERENT DATA PROCESSING MEANS; (B) A GROUP OF SECOND MEANS EACH INDIVIDUALLY ACTUABLE TO THEREBY SPECIFY COMMUNICATION BETWEEN THE PERIPHERAL UNIT AND A DIFFERENT DATA PROCESSING MEANS; (C) CONTROL MEANS RESPONSIVE TO THE CONCURRENCE OF A CONTROL INDICATION STORED IN ANY SAID FIRST MEANS AND SIGNALS REPRESENTING THAT ALL OF SAID SECOND MEANS UNACTUATED TO THEREBY ACTUATE A SID SECOND MEANS WHICH SPECIFIES COMMUNICATION WITH THE DATA PROCESSING MEANS ORIGINATING AND LAST NAMED CONTROL INDICATION; AND (D) A GROUP OF THIRD MEANS EACH INDIVIDUALLY RESPONSIVE TO A DIFFERENT ACTUATED SECOND MEANS FOR OPERATIVELY COMPLETING THE COMMUNICATION LINK BETWEEN THE PERIPHERAL UNIT AND A DIFFERENT DATA PROCESSING MEANS SPECIFIED BY SAID LAST NAMED DIFFERENT ACTUATED SECOND MEANS.
References Cited (Backward Citations)
US3029414A
Cited
US3061192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |