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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE SULFATO FÉRRICO PELA OXIDAÇÃO DE SULFATO FERROSO E ÁCIDO SULFÚRICO, E USO DO SULFATO FÉRRICO

ArquivadaInvention PatentPCT · FI1995000045

Application data

Number

PI9506689

Type

Invention Patent

Filing

02/02/1995

Publication

11/18/1997

PCT

FI1995000045

Progress at the INPI

  1. Filing02/02/95
  2. Publication11/18/97
  3. Abandoned
  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: 03/19/2002. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kemira Chemicals Oy

FI

Kemira Pigments Oy

FI

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Inventors

H. M. (pessoa física)

FI

O. K. (pessoa física)

FI

T. K. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

FI

940511 · 02/03/1994

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

03/19/2002

RPI 1628

Exigência - art. 36 da LPI

#6.1

01/23/2001

RPI 1568

Notificação de entrada na fase nacional - PCT

#1.3

11/18/1997

RPI 1407

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