Official data from INPI

PROCESSO PARA O BENEFICIAMENTO DE UM MATERIAL OXIDADO CONTENDO FERRO, E PRODUTO ASSIM OBTIDO

Em AnáliseInvention Patent

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Application data

Number

PI8100981

Type

Invention Patent

Filing

02/19/1980

Publication

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Progress at the INPI

Filing02/19/80
Publication
Examination09/13/83
Refused06/09/87
Grant
In force

The application was refused on 06/09/1987 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/09/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LAPORTE INDUSTRIES LTD

Inventors

W. H. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/09/1987

RPI 868

Petição de recurso

#12.2

05/27/1986

RPI 814

Indeferimento

#9.2

02/04/1986

RPI 798

Conhecimento de parecer técnico

#7.1

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

From the same holder

PROCESSO PARA BENEFICIAMENTO DE UM MATERIAL CONTENDO OXIDO DE FERRO EM COMBINACAO COM OXIDO DE CROMO, E MATERIAL ASSIM BENEFICIADO

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