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US3565630A Expired / Lapsed US ⏱️ 0.0 years remaining

Supersensitization with cyanine and merocyanine dyes

Assignee: Eastman Kodak Co
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Filing: 1967-10-05
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Granted: 1971-02-23
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Expires: 1987-10-05
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Abstract

Abstract FINE GRAIN PHOTOGRAPHIC SILVER HALIDE EMULSIONS ARE NATED, COMPLEX CYANINE DYE AND A COMPLEX MEROCYANINE DYE.

Inventors

  • 👤 Allan G Millikan
  • 👤 Gary L Hiller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:12
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/0075; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-22 1974-08-24 1975-02-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-22 1978-08-24 1979-02-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-22 1982-08-24 1983-02-23 $7700.00 Window Closed / Lapsed

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