US2879182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive devices
Assignee: Rauland Borg Corp
•
Filing: 1957-10-23
•
Granted: 1959-03-24
•
Expires: 1977-10-23
Abstract
No abstract record available.
Inventors
- 👤 Pakswer Serge
- 👤 Constantin S Szegho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
H; H10; H10F; H10F55/00; H10F71/00; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD OF MANUFACTURING PHOTOSENSITIVE IMPEDANCE DEVICES COMPRISING THE FOLLOWING STEPS: COATING A SUBSTRATE WITH A PHOTOCONDUCTOR CONSISTING PRIMARILY OF AT LEAST ONE COMPOUND FROM THE GROUP CONSISTING OF CADMIUM SULFIDE AND CADMIUM SELENIDE AND INCLUDING MINOR PORTIONS OF A DONOR ELEMENT SELECTED FROM THE GROUP CONSISTING OF ELEMENTS FROM THE THIRD AND SEVENTH COLUMNS OF THE PERIODIC TABLE AND AN INHIBITOR ELEMENT SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER AND MANGANESE; FIRING SAID COATED SUBSTRATE IN AN ATMOSPHERE CONTAINING AT LEAST ONE OF THE GROUP CONSISTING OF SULFUR AND SELENIUM AT A TEMPERATURE ABOVE 650*C., FOR A TIME SUFFICIENT TO SINTER SAID PHOTOCONDUCTOR COATING TO SAID SUBSTRATE AND TO DEVELOP PHOTOCONDUCTIVE PROPERTIES IN SAID COATING; AND APPLYING TWO SPACED CONDUCTIVE ELEMENTS TO SAID PHOTOCONDUCTOR COATING TO FORM A PAIR OF ELECTRODES ELECTRICALLY INTERCONNECTED BY SAID SINTERED PHOTOCONDUCTOR COATING.
Claim 2
Independent Claim
140 words
THE METHOD OF MANUFACTURING PHOTOSENSITIVE IMPEDANCE DEVICES COMPRISING THE FOLLOWING STEPS: COATING A SUBSTRATE WITH A PHOTOCONDUCTOR CONSISTING PRIMARILY OF AT LEAST ONE COMPOUND FROM THE GROUP CONSISTING OF CADMIUM SULFIDE AND CADMIUM SELENIDE AND INCLUDING MINOR PORTIONS OF A DONOR ELEMENT SELECTED FROM THE GROUP CONSISTING OF ELEMENTS FROM THE THIRD AND SEVENTH COLUMNS OF THE PERIODIC TABLE AND AN INHIBITOR ELEMENT SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER AND MANGANESE; FIRING SAID COATED SUBSTRATE IN AN ATMOSPHERE CONTAINING AT LEAST ONE OF THE GROUP CONSISTING OF SULFUR AND SELENIUM AT A TEMPERATURE ABOVE 650*C., FOR A TIME SUFFICIENT TO SINTER SAID PHOTOCONDUCTOR COATING TO SAID SUBSTRATE AND TO DEVELOP PHOTOCONDUCTIVE PROPERTIES IN SAID COATING; AND APPLYING TWO SPACED CONDUCTIVE ELEMENTS TO SAID PHOTOCONDUCTOR COATING TO FORM A PAIR OF ELECTRODES ELECTRICALLY INTERCONNECTED BY SAID SINTERED PHOTOCONDUCTOR COATING.
References Cited (Backward Citations)
US2688564A
Cited
US2765385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |