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Official data from INPI

PROCESSO PARA OBTENCAO DE SILICATO DE ALUMINIO CALCINADO

Em ExigênciaInvention Patent
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Application data

Number

PI8207179

Type

Invention Patent

Filing

12/10/1982

Publication

11/13/1984
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Progress at the INPI

Under appeal
  1. Filing12/10/82
  2. Publication11/13/84
  3. Examination05/28/85
  4. Refused03/13/90
  5. Grant
  6. In force

The application was refused by the INPI on 03/13/1990. The invention was never patented.

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Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ITATEX IND E COMERCIO REPRESEN [BR]

Inventors

C. O. (pessoa física)

M. S. (pessoa física)

Technical data

IPC Classification

C01B 33/26

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

05/28/1985

RPI 762

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

14.11

08/07/1984

RPI 720

14.11

07/10/1984

RPI 716

14.7

05/02/1984

RPI 706

14.4

04/10/1984

RPI 703

Pedido de patente depositado

#2.1

02/01/1983

RPI 641

Indeferimento

#9.2

03/13/1990

RPI 1009

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