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Official data from INPI

PROCESSO DE SEPARAÇÃO DE MINERAIS DE FOSFATO A PARTIR DE MINÉRIOS FOSFATADOS E APERFEIÇOAMENTOS EM COLUNAS DE FLOTAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8904917

Type

Invention Patent

Filing

09/28/1989

Publication

04/02/1991

Progress at the INPI

  1. Filing09/28/89
  2. Publication04/02/91
  3. Abandoned09/03/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/04/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petrobrás Fertilizantes S/A - Petrofértil

RJ, BR

Inventors

J. M. (pessoa física)

L. B. (pessoa física)

L. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.13

11/04/1997

RPI 1405

11.31

11/04/1997

RPI 1405

Arquivamento - Art. 36 §1° da LPI

#11.2

09/09/1997

RPI 1397

Exigência - art. 36 da LPI

#6.1

10/22/1996

RPI 1351

Solicitação de exame técnico

#4.1

09/03/1991

RPI 1083

Publicação do pedido de patente

#3.1

04/02/1991

RPI 1061

Pedido de patente depositado

#2.1

02/13/1990

RPI 1006

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