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US3634336A Expired / Lapsed US ⏱️ 0.0 years remaining

Organic semiconductors comprising an electron donating cation which is a group via element derivative of a polycyclic aromatic hydrocarbon and an electron-accepting anion

Assignee: Eastman Kodak Co
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Filing: 1969-08-18
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Granted: 1972-01-11
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Expires: 1989-08-18
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Abstract

Abstract ORGANIC SEMICONDUCTORS ARE DESCRIBED HAVING A ELECTRON DONATING CATION WHICH IS A GROUP VIA ELEMENT DERIVATIVE OF A POLYCYCLIC AROMATIC HYDROCARBON AND AN INORGANIC OR ORGANIC ELECTRON-ACCEPTING ANION. THESE MATERIALS ARE GENERALLY SOLUBLE IN ORDINARY SOLVENTS AND HAVE RESISTIVITIES BETWEEN 10**-2 AND 10**9 OHM-CM. THEY ARE USEFUL IN CONDUCTING COATINGS, FIBERS, ETC.

Inventors

  • 👤 Evelio A Perez-Albuerne

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 19:35
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/121; G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/853; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/06; G03G5/0601; G03G5/062; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0635; G03G5/0642; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933

Claims Analysis

Total Claims: 0
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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) 1975-01-10 1975-07-12 1976-01-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-01-10 1979-07-12 1980-01-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-01-10 1983-07-12 1984-01-11 $7700.00 Window Closed / Lapsed

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