Patent · US Expired

Color photographic multilayered material with layers of acid ashed gelatine

US4018609A · kind A · utility

4Cited by

1References

3Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Karl Lohmer · Leverkusen, DE
Hermann Seiz
Karl Zietan

Key dates

Filing date	May 27, 1975
Grant date	Apr 19, 1977
Priority date	—
Expiry date	May 27, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/151
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In a color photographic multilayered material which is suitable for rapid processing the protective layer and the auxiliary layers contain pigskin gelatine ashed under acid condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.