USPatentGranted
I4

Method of producing reversal color images

Granted 3 Jul 1979 · no office action yet

Assignee:

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Inventors: William H. Faul, Patrick H. Saturno · Examiner: · AU 166 · TC 1600

Application
910398
filed 30 May 1978
Publication
Not published
not published
Patent· this page
US T984002
granted 3 Jul 1979

Life of the patent

2 dated events
⤢ drag to zoomApr 1978Jul 1978Oct 1978Jan 1979Apr 1979Jul 1979Prosecution
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Abstract

reversal color images are produced in photographic elements which contain a ballasted primary aromatic amine and conventional ballasted color couplers. The photographic element is imagewise-exposed and a negative silver image is formed without forming a dye image. The residual silver halide in the photographic element is then fogged and developed to silver while concurrently forming a color dye image in the nonimagewise-exposed areas of the element. The developed silver is removed without removing the dye image.

Classifications

3 codes
IPC · International Patent Classification
Section G — Physics
  • G03C7/30
USPC · US Patent Classification
960/59960/22

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Pendency
1.1 y
399 days filing → grant
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