US2636855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing photoconductive coatings
Assignee: Hilger and Watts Ltd
•
Filing: 1948-10-18
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Granted: 1953-04-28
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Expires: 1968-10-18
Abstract
No abstract record available.
Inventors
- 👤 Schwarz Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:22
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/32; C23C14/34; C23C14/35; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD OF PRODUCING A PHOTO-CONDUCTIVE LAYER ON A CARRIER TO FORM A PHOTOCELL IN WHICH A COMPOUND CONTAINING AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF SULPHIDES, SELENIDES AND TELLURIDES AND AT LEAST ONE OTHER CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, THALLIUM AND MAGNESIUM IS USED FOR THE SENSITIVE LAYER AND IN WHICH THE METAL IS VAPORIZED FOR DEPOSITION ON TO THE CARRIER AND WHILE IN THE VAPOR PHASE IS SUBJECTED TO AN ELECTRIC DISCHARGE IN THE PRESENCE OF OXYGEN, THE SAID OTHER CONSTITUENT BEING SUBSEQUENTLY VAPORIZED FOR DEPOSITION ON TO THE CARRIER.
Claim 2
Independent Claim
98 words
THE METHOD OF PRODUCING A PHOTO-CONDUCTIVE LAYER ON A CARRIER TO FORM A PHOTOCELL IN WHICH A COMPOUND CONTAINING AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF SULPHIDES, SELENIDES AND TELLURIDES AND AT LEAST ONE OTHER CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, THALLIUM AND MAGNESIUM IS USED FOR THE SENSITIVE LAYER AND IN WHICH THE METAL IS VAPORIZED FOR DEPOSITION ON TO THE CARRIER AND WHILE IN THE VAPOR PHASE IS SUBJECTED TO AN ELECTRIC DISCHARGE IN THE PRESENCE OF OXYGEN, THE SAID OTHER CONSTITUENT BEING SUBSEQUENTLY VAPORIZED FOR DEPOSITION ON TO THE CARRIER.
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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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |