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Official data from INPI

PROCESSO PARA AUMENTAR A QUANTIDADE DE AGENTE DE RESFRIAMENTO NO DECORRER DO REFINO DO FERRO-GUSA

ConcedidaInvention Patent

Application data

Number

PI8300746

Type

Invention Patent

Filing

02/11/1983

Publication

11/16/1983

Progress at the INPI

  1. Filing02/11/83
  2. Publication11/16/83
  3. Examination09/03/85
  4. Allowance05/09/89
  5. Grant11/28/89
  6. Terminated04/18/95

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arbed S.A.

LU

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Inventors

F. G. (pessoa física)

FR

F. T. (pessoa física)

LU

F. S. (pessoa física)

FR

R. H. (pessoa física)

LU

Technical data

IPC Classification

Priority claims

LU

LU83 954 · 02/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/09/1989

RPI 968

Exigência - art. 36 da LPI

#6.1

10/11/1988

RPI 938

6.2

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

09/03/1985

RPI 776

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

03/29/1983

RPI 649

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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