Patent US3260600A successfully refreshed from Google Patents.
US3260600A
Expired / Lapsed
US
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Photographic image-receiving material
Assignee: Gevaert Photo Producten NV
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Filing: 1964-04-13
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Granted: 1966-07-12
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Haes Louis Maria De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:26
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN IMAGE-RECEIVING MATERIAL FOR USE IN THE SILVER COMPLEX DIFFUSION TRANSFER PROCESS COMPRISING SUCCESSIVELY A SUPPORT, A SILVER PRECIPITATING LAYER CONTAINING DEVELOPMENT NUCLEI AND AS A SEPARATE LAYER, A SURFACE LAYER OF CARBOXYMETHYLCELLULOSE HARDENED BY REACTION WITH A WATER-SOLUBLE CHROMIUO SALT PROVIDED SUBSTANTIALLY ONLY IN SAID SURFACE LAYER.
Claim 2
Dependent Claim
48 words
AN IMAGE-RECEIVING MATERIAL FOR USE IN THE SILVER COMPLEX DIFFUSION TRANSFER PROCESS COMPRISING SUCCESSIVELY A SUPPORT, A SILVER PRECIPITATING LAYER CONTAINING DEVELOPMENT NUCLEI AND AS A SEPARATE LAYER, A SURFACE LAYER OF CARBOXYMETHYLCELLULOSE HARDENED BY REACTION WITH A WATER-SOLUBLE CHROMIUO SALT PROVIDED SUBSTANTIALLY ONLY IN SAID SURFACE LAYER.
References Cited (Backward Citations)
US2271228A
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US2366439A
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US2765240A
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US2878121A
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US3089770A
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |