US3814600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic element
Assignee: Eastman Kodak Co
•
Filing: 1972-02-10
•
Granted: 1974-06-04
•
Expires: 1992-02-10
Abstract
Abstract A PROCESS IS DESCRIBED FOR THE DYE SENSITIZATION OF ELECTROPHOTOGRAPHIC ELEMENTS. THE DYE IS CONCENTRATED IN A THIN LAYER BY PREFERENTIAL ABSORPTION FROM THE PHOTOCONDUCTIVE LAYER INTO A SUBBING LAYER HAVING A GREATER AFFINITY FOR THE DYE.
Inventors
- 👤 L Contois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:30
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/09; G03G5/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |