US3351469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic image-receiving material
Assignee: Gevaert Photo Producten NV
•
Filing: 1966-04-06
•
Granted: 1967-11-07
•
Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Haes Louis Maria De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN IMAGE-RECEIVING MATERIAL FOR USE IN THE SILVER COMPLEX DIFFUSION TRANSFER PROCESS COMPRISING SUCCESSIVELY A SUPPORT, A GELATIN IMAGE-RECEIVING LAYER CONTAINING DEVELOPMENT NUCLEI AND AN ALGINATE SURFACE LAYER, THE FORMER LAYER BEING HARDENED IN SITU BY HARDENING AGENT FOR GELATIN PRESENT IN THE COATING COMPOSITION OF THE ALGINATE LAYER, AND THE LATTER LAYER BEING INSOLUBILISED IN SITU BY A SUITABLE WATER-SOLUBLE METAL SALT PRESENT IN THE COATING COMPOSITION OF THE IMAGE-RECEIVING LAYER.
Claim 2
Dependent Claim
72 words
AN IMAGE-RECEIVING MATERIAL FOR USE IN THE SILVER COMPLEX DIFFUSION TRANSFER PROCESS COMPRISING SUCCESSIVELY A SUPPORT, A GELATIN IMAGE-RECEIVING LAYER CONTAINING DEVELOPMENT NUCLEI AND AN ALGINATE SURFACE LAYER, THE FORMER LAYER BEING HARDENED IN SITU BY HARDENING AGENT FOR GELATIN PRESENT IN THE COATING COMPOSITION OF THE ALGINATE LAYER, AND THE LATTER LAYER BEING INSOLUBILISED IN SITU BY A SUITABLE WATER-SOLUBLE METAL SALT PRESENT IN THE COATING COMPOSITION OF THE IMAGE-RECEIVING LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |