US2747796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computing circuits
Assignee: Sunoco Inc
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Filing: 1954-05-28
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Granted: 1956-05-29
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Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Omar L Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:37
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/32; G06G7/38; G06G7/40; G06G7/44; G06G7/14; G06G7/18; G06G7/184; G06G7/24; G06G7/48; G06G7/57; H; H03; H03K; H03K17/00; H03K17/51; H03K17/54; H03K5/00; H03K5/01; H03K5/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
168 words
A CIRCUIT FOR PERFORMING MULTIPLICATION AND DIVISION COMPRISING A FIRST PAIR OF TRIODES HAVING THEIR ANODE CONNECTED AND THEIR CATHODES CONNECTED, A SECOND PAIR OF TRIODES HAVING THEIR ANODES CONNECTED AND THEIR CATHODES CONNECTED, THE ANODES OF THE TRIODES OF THE SECOND PAIR BEING CONNECTED TO TH CATHODES OF THE TRIODES OF THE FIRST PAIR SO THAT THE TOTAL ANODE-CATHODE CURRENT OF THE FIRST PAIR FLOWS IN THE PARALLEL ANODE-CATHODE ARRANGEMENT OF THE SECOND PAIR, EACH OF THE TRIODE GRIDS BEING CONNECTED TO A CORRESPONDING INPUT TERMINAL, A DIFFERENTIAL AMPLIFIER HAVING A PAIR OF INPUT TERMINALS AND AN OUTPUT TERMINAL, ONE OF SAID INPUT TERMINALS OF THE DIFFERENTIAL AMPLIFIER BEING CONNECTED TO A SOURCE OF SUBSTANTIALLY CONSTANT POTENTIAL, THE OTHER INPUT TERMINAL OF THE DIFFERENT AMPLIFIER BEING CONNECTED TO THE CONNECTION BETWEEN THE CATHODES OF THE FIRST PAIR OF TRIODES AND THE ANODES OF THE SECOND PAIR OF TRIODES, AND THE OUTPUT TERMINAL OF THE DIFFERENTIAL AMPLIFIER BEING CONNECTED TO THE INPUT TERMINAL OF ONE OF SAID TRIODES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |