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Official data from INPI

PROCESSO DE TRATAMENTO QUE PERMITE MELHORAR A SEPARACAO DAS FASES SOLIDA E LIQUIDA DE UMA SUSPENSAO AQUOSA RESULTANTE DO ATAQUE SULFURICO DE UM MINERIO URANIFERO

Em AnáliseInvention Patent

Application data

Number

PI8100032

Type

Invention Patent

Filing

01/07/1980

Publication

-

Progress at the INPI

  1. Filing01/07/80
  2. Publication
  3. Examination11/24/81
  4. Allowance10/09/84
  5. Grant04/30/85
  6. Terminated11/16/88

The patent was granted on 04/30/1985 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. U. (pessoa física)

Inventors

F. A. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

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