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Official data from INPI

RECUPERAÇÃO DE LINGOTEIRAS COM DESGASTE ACENTUADO, UTILIZANDO-SE A ELETROFUSÃO

ConcedidaInvention Patent

Application data

Number

PI8302018

Type

Invention Patent

Filing

04/19/1983

Publication

11/20/1984

Progress at the INPI

  1. Filing04/19/83
  2. Publication11/20/84
  3. Examination10/14/86
  4. Allowance09/13/88
  5. Grant07/25/89
  6. Terminated04/25/95

The patent was granted on 07/25/1989 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: 07/25/1989. 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

C. D. (pessoa física)

M. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/03/1989

RPI 950

Deferimento

#9.1

09/13/1988

RPI 934

Exigência - art. 36 da LPI

#6.1

03/08/1988

RPI 907

Solicitação de exame técnico

#4.1

10/14/1986

RPI 834

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

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