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Official data from INPI

PROCESSO DE REDUÇÃO DOS TEORES DE FÓSFORO E ALUMINA DE MINÉRIOS DE FERRO

Prazo de SigiloInvention Patent

Application data

Number

PI8802450

Type

Invention Patent

Filing

05/17/1988

Publication

01/02/1990

Progress at the INPI

Technical opinion to answer
  1. Filing05/17/88
  2. Publication01/02/90
  3. Examination08/28/90
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S.A. Mineração da Trindade - SAMITRI

MG, BR

Inventors

A. A. (pessoa física)

BR

E. C. (pessoa física)

BR

J. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Retificação

#15.3

10/10/1995

RPI 1297

Conhecimento de parecer técnico

#7.1

12/13/1994

RPI 1254

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

Publicação do pedido de patente

#3.1

01/02/1990

RPI 1000

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