Patent US2462111A successfully refreshed from Google Patents.
US2636855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing photoconductive coatings
Assignee: Hilger and Watts Ltd
•
Filing: 1948-10-18
•
Granted: 1953-04-28
•
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.
References Cited (Backward Citations)
US1765413A
Cited
US2066611A
Cited
US2103623A
Cited
US2153363A
Cited
US2239642A
Cited
US2164595A
Cited
US2189580A
Cited
US2420722A
Cited
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 |