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Official data from INPI

PROCESSO E DISPOSITIVO PARA A GASEIFICACAO CONTINUA DE CARVAO MINERAL COM OBTENCAO DE COQUE E OUTROS SUBPRODUTOS

Em ExigênciaInvention Patent

Application data

Number

PI8404901

Type

Invention Patent

Filing

09/26/1984

Publication

04/29/1986

Progress at the INPI

Under appeal
  1. Filing09/26/84
  2. Publication04/29/86
  3. Examination08/12/86
  4. Refused01/02/91
  5. Grant
  6. In force

The application was refused by the INPI on 01/02/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SL SERVICOS E PARTICIPACOES S [BR]

Inventors

S. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/15/1989

RPI 982

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

04/29/1986

RPI 810

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Indeferimento

#9.2

01/02/1991

RPI 1048

6.4

05/01/1990

RPI 1016

6.4

03/20/1990

RPI 1010

Conhecimento de parecer técnico

#7.1

03/20/1990

RPI 1010

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