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Official data from INPI

PROCESSO PARA TRATAMENTO DE CONCENTRADOS DE SULFETO DE METAL MISTURADOS

Prazo de SigiloInvention Patent
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Application data

Number

PI8902300

Type

Invention Patent

Filing

05/17/1989

Publication

01/09/1990
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Progress at the INPI

  1. Filing05/17/89
  2. Publication01/09/90
  3. Examination11/20/90
  4. Refused07/02/96
  5. Grant
  6. In force

The application was refused on 07/02/1996 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Mining Union Corporation Limited

ZA

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Inventors

A. H. (pessoa física)

Technical data

IPC Classification

C22B 3/18

Priority claims

ZA

88/3546 · 05/19/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/04/1989

RPI 976

Transferência indeferida

#25.2

12/23/1997

RPI 1409

111

07/02/1996

RPI 1335

Republicação - classificação IPC

#15.11

04/04/1995

RPI 1270

Petição de recurso

#12.2

11/29/1994

RPI 1252

Indeferimento anulado

#9.2.2

11/01/1994

RPI 1248

Indeferimento

#9.2

09/06/1994

RPI 1240

Indeferimento

#9.2

08/30/1994

RPI 1239

15.7

05/31/1994

RPI 1226

Conhecimento de parecer técnico

#7.1

10/19/1993

RPI 1194

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

Publicação do pedido de patente

#3.1

01/09/1990

RPI 1001

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