Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE FILTROS DE CERÂMICA PARA CORRIDAS DE METAL

Em AnáliseInvention Patent

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Application data

Number

PI8600662

Type

Invention Patent

Filing

02/17/1986

Publication

09/08/1987

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Progress at the INPI

Under appeal

Filing02/17/86
Publication09/08/87
Examination02/17/88
Refused01/26/93
Grant
In force

The application was refused by the INPI on 01/26/1993. The invention was never patented.

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Latest action published by the INPI: 02/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Swiss Aluminum Ltd

Inventors

B. W. (pessoa física)

Technical data

IPC Classification

C04B 38/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/17/1988

RPI 904

Publicação do pedido de patente

#3.1

09/08/1987

RPI 881

Pedido de patente depositado

#2.1

08/05/1986

RPI 824

Indeferimento

#9.2

01/26/1993

RPI 1156

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DESGASEIFICADOR APERFEIÇOADO PARA METAL FUNDIDO

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