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Official data from INPI

DRENO-SECO E PROCEDIMENTO PARA ESGOTAMENTO DO MESMO, PARA LINHA DE GÁS DE COQUERIA.

Em AnáliseInvention Patent

Application data

Number

PI8602083

Type

Invention Patent

Filing

05/09/1986

Publication

12/22/1987

Progress at the INPI

Awaiting grant fee payment
  1. Filing05/09/86
  2. Publication12/22/87
  3. Examination01/10/89
  4. Allowance04/27/93
  5. Grant
  6. In force

The application was allowed by the INPI on 04/27/1993. The grant of the letters patent is being processed.

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Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderurgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

W. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/10/1989

RPI 951

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

11/18/1986

RPI 839

Retificação

#15.3

02/16/1994

RPI 1211

Deferimento

#9.1

04/27/1993

RPI 1169

Exigência - art. 36 da LPI

#6.1

09/22/1992

RPI 1138

Republicação - classificação IPC

#15.11

12/24/1991

RPI 1099

Exigência - art. 36 da LPI

#6.1

11/26/1991

RPI 1095

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