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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 0570796 B1 19981111 - Processing of reversal photographic materials

Title (en)

Processing of reversal photographic materials

Title (de)

Verarbeitung von Umkehrmaterialien

Title (fr)

Traitement par inversion des matériaux photographiques

Publication

EP 0570796 B1 19981111 (DE)

Application

EP 93107557 A 19930510

Priority

DE 4217022 A 19920522

Abstract (en)

[origin: EP0570796A2] In reversal processing, the washing between primary development and reversal bath can be avoided, without loss of photographic quality, if the reversal bath is moved in countercurrent with at least two stages.

IPC 1-7

G03C 5/50

IPC 8 full level

G03C 5/50 (2006.01)

CPC (source: EP US)

G03C 5/50 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0570796 A2 19931124; EP 0570796 A3 19940810; EP 0570796 B1 19981111; DE 4217022 A1 19931125; DE 59309118 D1 19981217; JP H0635135 A 19940210; US 5869224 A 19990209

DOCDB simple family (application)

EP 93107557 A 19930510; DE 4217022 A 19920522; DE 59309118 T 19930510; JP 13900693 A 19930518; US 5998393 A 19930512