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Official data from INPI

PROCESSO PARA A PREPARACAO DE COQUE DE ALTO FORNO E DISPOSITIVO PARA A EXECUCAO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI7705917

Type

Invention Patent

Filing

09/10/1976

Publication

-

Progress at the INPI

  1. Filing09/10/76
  2. Publication
  3. Examination
  4. Allowance05/18/82
  5. Grant11/30/82
  6. Terminated08/28/90

The patent was granted on 11/30/1982 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: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

Inventors

B. F. (pessoa física)

D. H. (pessoa física)

F. K. (pessoa física)

S. H. (pessoa física)

U. K. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/18/1982

RPI 604

15.0

11/24/1981

RPI 579

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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