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Official data from INPI

PROCESSO E DISPOSITIVO PARA A GASEIFICAÇÃO CONTÍNUA DE CARVÃO MINERAL, COM OBTENÇÃO DE COQUE E OUTROS SUBPRODUTOS

IndeferidaInvention Patent
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Application data

Number

PI8204457

Type

Invention Patent

Filing

07/29/1982

Publication

03/13/1984
View on INPI

Progress at the INPI

Under appeal
  1. Filing07/29/82
  2. Publication03/13/84
  3. Examination03/25/86
  4. Refused11/17/87
  5. Grant
  6. In force

The application was refused by the INPI on 11/17/1987. The invention was never patented.

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Latest action published by the INPI: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. E. (pessoa física)

SP, BR

Inventors

M. E. (pessoa física)

BR

Technical data

IPC Classification

C10B 47/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

11/17/1987

RPI 891

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Conhecimento de parecer técnico

#7.1

12/02/1986

RPI 841

Solicitação de exame técnico

#4.1

03/25/1986

RPI 805

14.2

09/17/1985

RPI 778

14.2

09/10/1985

RPI 777

14.3

07/10/1984

RPI 716

14.10

05/29/1984

RPI 710

Publicação do pedido de patente

#3.1

03/13/1984

RPI 699

14.1

12/06/1983

RPI 685

14.2

05/31/1983

RPI 658

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

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