US3746564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic diffusion transfer product and process
Assignee: Eastman Kodak Co
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Filing: 1970-11-19
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Granted: 1973-07-17
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Expires: 1990-11-19
Abstract
Abstract A RECEIVING SHEET FOR USE IN A DIFFUSION TRANSFER PROCESS COMPRISES A POLYOLEFIN SURFACE SUCH AS POLYETHYLENE OVER WHICH IS COATED A CELLULOSE ESTER LAYER SUCH AS CELLULOSE TRIACETATE AND OVER WHICH IS THEN COATED AN IMAGE RECEIVING LAYER. THE IMAGE RECEIVING LAYER CAN BE A NUCLEATED LAYER FOR USE IN BLACK AND WHITE DIFFUSION TRANSFER OR A MORDANTED LAYER FOR USE IN COLOR DIFFUSION TRANSFER.
Inventors
- 👤 T Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:15
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; Y; Y10; Y10S; Y10S430/00; Y10S430/142; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31728; Y10T428/31768; Y10T428/31772; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 0
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |