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Official data from INPI

MÉTODO PARA PREPARAR FENILAMINO-HIDROXIANTRAQUINONAS

ArquivadaInvention Patent

Application data

Number

102018074112

Type

Invention Patent

Filing

11/23/2018

Publication

08/04/2020

Progress at the INPI

  1. Filing11/23/18
  2. Publication08/04/20
  3. Examination
  4. Allowance02/04/25
  5. Abandoned
  6. In force

The application was allowed on 02/04/2025 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 05/20/2025. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LANXESS DEUTSCHLAND GMBH

DE

See this company's full portfolio

Inventors

A. M. (pessoa física)

DE

H. B. (pessoa física)

DE

S. S. (pessoa física)

DE

Technical data

Priority claims

EP

17203513.1 · 11/24/2017

Abstract

O método de preparação inovador de 1,4-difenilamino-5,8-di-hidroxiantraquinona propicia estes corantes com uma alta intensidade de cor e excelente brilho para a coloração de plásticos.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

05/20/2025

RPI 2837

Deferimento

#9.1

02/04/2025

RPI 2822

Parecer de pré-exame

#6.23

11/28/2023

RPI 2760

Publicação do pedido de patente

#3.1

08/04/2020

RPI 2587

Pedido de patente depositado

#2.1

12/18/2018

RPI 2502

Requerimento de pedido de patente

#2.10

Número de Protocolo '870180154232' em 23/11/2018 11:57 (WB)

12/04/2018

RPI 2500

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