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Official data from INPI

PROCESSO PARAS PARTIDA E PARADA DE CALDEIRA UTILIZANDO GÁS DE ALTO FORNO

DeferidaInvention Patent

Application data

Number

PI8305303

Type

Invention Patent

Filing

09/27/1983

Publication

04/30/1985

Progress at the INPI

  1. Filing09/27/83
  2. Publication04/30/85
  3. Examination08/12/86
  4. Allowance08/29/89
  5. Grant04/24/90
  6. Terminated05/02/95

The patent was granted on 04/24/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

N. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

Exigência - art. 36 da LPI

#6.1

03/21/1989

RPI 961

Exigência - art. 36 da LPI

#6.1

06/16/1987

RPI 869

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

3.4

08/27/1985

RPI 775

3.4

06/11/1985

RPI 764

Publicação do pedido de patente

#3.1

04/30/1985

RPI 758

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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