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US3703588A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for imparting antistatic properties to polymeric materials

Assignee: NORIO SAITO NARA KEN AND UNITI
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Filing: 1969-11-21
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Granted: 1972-11-21
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Expires: 1989-11-21
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Abstract

Abstract AN ORGANIC TIN COMPOUND OF THE FORMULA: A-O-SN(-R1)2-R2 WHEREIN A IS A RESIDUE OF MONOALKYL PHOSPHATE, DIALKYL PHOSPHATE, MONOALKYL PHOSPHITE, DIALKYL PHOSPHITE, ALKANECARBOXYLIC ACID, ALKANEDICARBOXYLIC ACID, MONALKYL ALKANEDICARBOXYLATE, ALKENEDICARBOXYLIC ACID, MONOALKYL ALKENEDICARBOXYLATE, ARENECARBOXYLIC ACID, ARENEDICARBOXYLIC ACID, MONALKYL ARENDICARBOXYLATE, ALKANESULFONIC ACID, ARENESULFONIC ACID, ARENEDISULFONIC ACID, MONOALKYL ARENEDISULFONATE, OR ALKYLSULFURIC ACID, AND R1 AND R2 ARE EACH ALKYL, ARYL OR ARALKYL, WHICH IS PRODUCED ON POLYMERIC MATERIALS TO FIX FIRMLY THEREON AND IMPARTS THEM EXCELLENT DURABLE ANTISTATIC PROPERTIES AGAINST BOTH WASHING AND DRY-CLEANING.

Inventors

  • 👤 Norio Saito
  • 👤 Hiroshiro Kimura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 20:18
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F7/00; C07F7/22; C07F7/2224; D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681

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) 1975-11-21 1976-05-22 1976-11-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-11-21 1980-05-22 1980-11-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-11-21 1984-05-22 1984-11-21 $7700.00 Window Closed / Lapsed

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