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Official data from INPI

PROCESSO E INSTALAÇÃO PARA LIXIVIAÇÃO IN SITU DE MINÉRIOS

Em ExigênciaInvention Patent

Application data

Number

PI8301329

Type

Invention Patent

Filing

03/16/1983

Publication

11/29/1983

Progress at the INPI

  1. Filing03/16/83
  2. Publication11/29/83
  3. Examination11/12/85
  4. Allowance
  5. Grant08/28/90
  6. Terminated04/18/95

The patent was granted on 08/28/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BRASIL OXIGENIO [BR]

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Inventors

J. R. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

82 04 480 · 03/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

04/19/1988

RPI 913

6.2

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

11/29/1983

RPI 684

Pedido de patente depositado

#2.1

05/03/1983

RPI 654

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

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