Title:
Photographic color reproduction process and element
United States Patent 3227551

Inventors:
Barr, Charles R.
John, Williams
Keith, Whitmore
Publication Date:
01/04/1966
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Assignee:
EASTMAN KODAK CO
Primary Class:
430/219
Other Classes:
430/557, 430/555, 430/553, 430/226, 430/240, 430/214, 430/212, 430/543, 430/611, 430/957, 430/220
International Classes:
C07D231/26; C07D231/32; C07D231/34; C07D231/36; C07D231/52; C07D249/18; C07D257/04; C07D277/74; C07D307/80; C07D333/34; C07F3/12; C09B11/06; C09B11/26; C09B31/06; C09B31/078; C09B35/04; C09B39/00; G03C7/30; G03C7/305; G03C7/333; G03C8/08; C07D231/00; C07D249/00; C07D257/00; C07D277/00; C07D307/00; C07D333/00; C07F3/00; C09B11/00; C09B31/00; C09B35/00; G03C8/02
US Patent References:
2694008Process for the production of colored masks in photographic color material
2712995Process for the direct production of positive photographic images
2756142Photographic color reproduction process
2774668Process and product for forming color images from complete dyes
2808329Photographic color correction using colored and uncolored couplers
2860974Photographic color correction process
3148062Photographic elements and processes using splittable couplers