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Official data from INPI

MÁQUINA PARA MOVIMENTAÇÃO DE BLOCOS REFRATÁRIOS NO INTERIOR DE FORNO DE PLACAS DE AÇO

Em AnáliseInvention Patent

Application data

Number

PI8504395

Type

Invention Patent

Filing

09/11/1985

Publication

04/14/1987

Progress at the INPI

  1. Filing09/11/85
  2. Publication04/14/87
  3. Examination07/19/88
  4. Allowance04/04/89
  5. Grant01/09/90
  6. Terminated08/08/95

The patent was granted on 01/09/1990 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: 08/01/1989. 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

J. C. (pessoa física)

BR

L. S. (pessoa física)

BR

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

08/01/1989

RPI 980

Deferimento

#9.1

04/04/1989

RPI 963

Solicitação de exame técnico

#4.1

07/19/1988

RPI 926

Publicação do pedido de patente

#3.1

04/14/1987

RPI 860

Pedido de patente depositado

#2.1

11/19/1985

RPI 787

Anuidade - prazo legal encerrado

#18.2

08/08/1995

RPI 1288

Concessão da patente

#16.1

01/09/1990

RPI 1001

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