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Official data from INPI

RECIPIENTES, PROCESSO PARA PRODUÇÃO DE UM MATERIAL DE ALUMINO-SILICATO REFRATÁRIO EM PARTÍCULAS, MATERIAL E AGREGADO DE ALUMINO-SILICATO REFRATÁRIO E PROCESSO PARA SELEÇÃO DE UM MATERIAL REFRATÁRIO ISOLANTE

Em AnáliseInvention Patent

Application data

Number

PI9002477

Type

Invention Patent

Filing

05/25/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/25/90
  2. Publication08/13/91
  3. Examination10/26/93
  4. Allowance
  5. Grant
  6. In force

Published on 08/13/1991, 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: 03/27/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcan International Limited

CA

See this company's full portfolio

Inventors

C. A. (pessoa física)

CA

Technical data

Priority claims

CA

600.673 · 05/25/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C04B 35/68; C04B 35/10; C04B 35/14.

03/27/2018

RPI 2464

Retificação

#15.3

10/08/1996

RPI 1349

Solicitação de exame técnico

#4.1

10/26/1993

RPI 1195

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

10/09/1990

RPI 1036

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