US3191040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive matrix switching plugboard
Assignee: International Business Machines Corp
•
Filing: 1959-06-08
•
Granted: 1965-06-22
•
Expires: 1979-06-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Critchlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:20
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/78
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
AN OPTICALLY MANIPULATABLE DIODE-LOGIC SYSTEM WHEREIN DIODE-LOGIC MAY BE OPTICALLY FABRICATED, SAID SYSTEM COMPRISING IN COMBINATION: AT LEAST ONE DIODE DEVICE, EACH DEVICE INCLUDING TWO TERMINAL CONNECTORS; AT LEAST ONE POWER SUPPLY CONDUCTOR DISPOSED ADJACENT SAID TERMINAL CONNECTORS SO AS TO CROSS AT LEAST ONE OF SAID CONNECTORS AND REMAIN SPACED THEREFROM TO THEREBY FORM SELECTED FIRST JUNCTIONS THEREWITH; AT LEAST ONE SIGNAL OUTPUT CONDUCTOR DISPOSED ADJACENT SAID TERMINAL CONNECTORS SO AS TO CROSS AT LEAST ONE OF SAID CONNECTORS AND REMAIN SPACED THEREFROM TO THEREBY FROM SELECTED SECOND JUNCTIONS THEREWITH; A PLURALITY OF INPUT CONDUCTORS DISPOSED ADJACENT SAID TERMINAL CONNECTORS SO AS TO CROSS AT LEAST ONE OF SAID CONNECTORS AND REMAIN SPACED THEREFROM TO THEREBY FORM SELECTED THIRD JUNCTIONS THEREWITH; PHOTOCONDUCTIVE MEANS DISPOSED INTERMEDIATE SAID CON-
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |