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Official data from INPI

PROCESSO DE REDUCAO DIRETA DE MINERIO DE FERRO EM LEITO FLUIDIZADO

ConcedidaInvention Patent

Application data

Number

PI8002219

Type

Invention Patent

Filing

04/11/1979

Publication

-

Progress at the INPI

  1. Filing04/11/79
  2. Publication
  3. Examination
  4. Allowance02/09/88
  5. Grant07/26/88
  6. Terminated07/26/94

The patent was granted on 07/26/1988 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. I. (pessoa física)

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Inventors

T. H. (pessoa física)

Y. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Deferimento

#9.1

02/09/1988

RPI 903

Conhecimento de parecer técnico

#7.1

11/20/1984

RPI 735

Republicação - classificação IPC

#15.11

03/07/1984

RPI 698

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

6.2

02/08/1983

RPI 642

Anuidade - prazo legal encerrado

#18.2

07/26/1994

RPI 1234

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