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Official data from INPI

PROCESSO DE PREPARAÇÃO DE SULFATO DE CÁLCIO COM ESTRUTURA CRISTALINA LONGILÍNEPROCESSO DE PREPARAÇÃO DE SULFATO DE CÁLCIO COM ESTUTURA CRISTALINA LONGILÍNEAA, DOTADO DE COMPRIMENTO E FATOR DE FORMA CONTROLADOS , DOTADO DE COMPRIMENTO E FATOR DE FORMA CONTROLADOS

Em AnáliseInvention PatentPCT · EP1989000300

Application data

Number

PI8906477

Type

Invention Patent

Filing

03/21/1989

Publication

11/27/1990

PCT

EP1989000300

Progress at the INPI

  1. Filing03/21/89
  2. Publication11/27/90
  3. Examination12/03/91
  4. Allowance
  5. Grant
  6. In force

Published on 11/27/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 03/20/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lafarge Coppee S.A.

FR

P. A. (pessoa física)

FR

Inventors

A. P. (pessoa física)

Technical data

Priority claims

FR

88/04338 · 03/24/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08K 3/30; C08K 7/08; D21H 5/18; C04B 14/38; C09C 1/02; C01F 11/46.

03/20/2018

RPI 2463

Retificação

#15.3

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

12/03/1991

RPI 1096

14.1

05/14/1991

RPI 1067

Notificação de entrada na fase nacional - PCT

#1.3

11/27/1990

RPI 1043

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