Method of making a photographic developer solution
US5411842A · kind A · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Apr 7, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C5/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for making a photographic silver halide developer composition, preferably immediately before use, by electrolysing an aqueous medium containing a developing agent precursor composition which forms or releases a silver halide developing agent at an electrode upon electrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.