US3015562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiving sheet for use in photographic silver transfer process
Assignee: GAF Chemicals Corp
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Filing: 1958-05-07
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Granted: 1962-01-02
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Expires: 1978-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Clifford E Herrick
- 👤 Floyd J Lafreniere
- 👤 Straw Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A RECEVING MATERIAL FOR USE IN THE PHOTOGRAPHIC DIFFUSION-TRANSFER PROCESS COMPRISING A SUPPORT HAVING THEREON A WATER RECELTIVE LAYER COMPRISING AN ALKALI TREATED MIXTURE OF A POLYALKYL VINYL ETHER-MALEIC ANHYDRIDE CO-POLYMER AND A HYDROPHOBIC RESIN COMPATIBLE THEREWITH, A SILVER HALIDE DEVELOPING AGENT, A FOGGING AGENT CAPABLE OF TRANSFORMING A SOLUBLE SILVER HALIDE IMAGE INTO AN IMAGE OF HIGH OPTICAL OPACITY AND A WATER SOLUBLE SILVER SALT.
Claim 2
Dependent Claim
66 words
A RECEVING MATERIAL FOR USE IN THE PHOTOGRAPHIC DIFFUSION-TRANSFER PROCESS COMPRISING A SUPPORT HAVING THEREON A WATER RECELTIVE LAYER COMPRISING AN ALKALI TREATED MIXTURE OF A POLYALKYL VINYL ETHER-MALEIC ANHYDRIDE CO-POLYMER AND A HYDROPHOBIC RESIN COMPATIBLE THEREWITH, A SILVER HALIDE DEVELOPING AGENT, A FOGGING AGENT CAPABLE OF TRANSFORMING A SOLUBLE SILVER HALIDE IMAGE INTO AN IMAGE OF HIGH OPTICAL OPACITY AND A WATER SOLUBLE SILVER SALT.
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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |