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Official data from INPI

PROCESSO DE RECUPERACAO DE GASES COMBUSTIVEIS EM UM FORNO DE ELETROMETALURGIA E DISPOSITIVO

Em AnáliseInvention Patent

Application data

Number

PI8206952

Type

Invention Patent

Filing

12/01/1981

Publication

10/11/1983

Progress at the INPI

  1. Filing12/01/81
  2. Publication10/11/83
  3. Examination01/24/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Terminated11/29/88

The patent was granted on 04/29/1986 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SOFREM [FR]

Inventors

D. F. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/29/1988

RPI 945

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

02/12/1985

RPI 747

Solicitação de exame técnico

#4.1

01/24/1984

RPI 692

Publicação do pedido de patente

#3.1

10/11/1983

RPI 677

Pedido de patente depositado

#2.1

01/25/1983

RPI 640

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