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US3499764A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide compositions stabilized with propiolic acid

Assignee: Konica Minolta Inc
•
Filing: 1965-05-24
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Granted: 1970-03-10
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Expires: 1985-05-24
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Abstract

No abstract record available.

Inventors

  • 👤 Issei Iwai
  • 👤 Yasuo Yura
  • 👤 Yoshimi Kuwabara
  • 👤 Sadao Sugita

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:16
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3212900A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-03-09 1973-09-08 1974-03-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-03-09 1977-09-08 1978-03-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-03-09 1981-09-08 1982-03-10 $7700.00 Window Closed / Lapsed

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