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Official data from INPI

Processo para a separação de minerais de fosfato de um minério de fosfato, especialmente de um minério de fosfato-carbonato por flutuação com espuma e agente para uso no mesmo.

ArquivadaInvention Patent

Application data

Number

PI8505051

Type

Invention Patent

Filing

10/10/1985

Publication

07/29/1986

Progress at the INPI

  1. Filing10/10/85
  2. Publication07/29/86
  3. Abandoned05/31/88
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kemira Oy

FI

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Inventors

E. S. (pessoa física)

E. K. (pessoa física)

J. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

11/14/1989

RPI 995

6.2

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

05/31/1988

RPI 919

14.1

12/30/1986

RPI 845

Publicação do pedido de patente

#3.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

12/17/1985

RPI 791

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