US3172828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation-responsive element
Assignee: —
•
Filing: —
•
Granted: 1965-03-09
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Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0433; G03G17/00; G03G17/02; G03G5/08; G03G5/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A RADIATION-RESPONSIVE SHEET COMPRISING AN ELECTRICALLY CONDUCTING BASE SHEET, A FIRST SEMI-CONDUCTIVE LAYER OVERLYING AND ATTACHED TO SAID BASE SHEET, AND A SECOND SEMI-CONDUCTIVE LAYER SUBSTANTIALLY COEXTENSIVELY OVERLYING AND ATTACHED TO SAID FIRST SEMI-CONDUCTIVE LAYER FROMING A PLANE JUNCTION THEREBETWEEN, ONE OF SAID SEMI-CONDUCTIVE LAYERS BEING N-TYPE AND THE OTHER OF SAID SEMICONDUCTIVE LAYERS BEING P-TYPE, AND AT LEAST ONE OF SAID SEMI-CONDUCTIVE LAYERS BEING PHOTOCONDUCTIVE, SAID PLANE JUNCTION BEING ACCESSIBLE TO RADIATION AND THE TOTAL RESISTANCE OF SAID SHEET IN THE TRANSVERSE DIRECTION BEING NOT HIGHER THAN ABOUT 10**9 OHMS PER SQUARE INCH IN THE DARK.
Claim 2
Dependent Claim
97 words
A RADIATION-RESPONSIVE SHEET COMPRISING AN ELECTRICALLY CONDUCTING BASE SHEET, A FIRST SEMI-CONDUCTIVE LAYER OVERLYING AND ATTACHED TO SAID BASE SHEET, AND A SECOND SEMI-CONDUCTIVE LAYER SUBSTANTIALLY COEXTENSIVELY OVERLYING AND ATTACHED TO SAID FIRST SEMI-CONDUCTIVE LAYER FROMING A PLANE JUNCTION THEREBETWEEN, ONE OF SAID SEMI-CONDUCTIVE LAYERS BEING N-TYPE AND THE OTHER OF SAID SEMICONDUCTIVE LAYERS BEING P-TYPE, AND AT LEAST ONE OF SAID SEMI-CONDUCTIVE LAYERS BEING PHOTOCONDUCTIVE, SAID PLANE JUNCTION BEING ACCESSIBLE TO RADIATION AND THE TOTAL RESISTANCE OF SAID SHEET IN THE TRANSVERSE DIRECTION BEING NOT HIGHER THAN ABOUT 10**9 OHMS PER SQUARE INCH IN THE DARK.
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |