Patent · US Expired

Blocked incorporated developers in a photographic element

US5256525A · kind A · utility

9Cited by
4References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 19, 1991
Grant dateOct 26, 1993
Priority date
Expiry dateDec 19, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/16
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A photographic element is disclosed including a support bearing at least one photographic silver halide emulsion layer and at least one non-photosensitive layer between the emulsion layer and the support, wherein the non-photosensitive layer comprises at least one blocked developing agent.

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