Official data from INPI

COMPOSICAO E PROCESSO PARA TRATAMENTO DE CERVEJA CONTRA FORMACAO DE NEVOA POR REFRIGERACAO E CONTAMINACAO POR METAIS

Em AnáliseInvention Patent

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Application data

Number

PI8401044

Type

Invention Patent

Filing

05/06/1983

Publication

02/26/1985

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Progress at the INPI

Under appeal

Filing05/06/83
Publication02/26/85
Examination04/14/87
Refused02/13/91
Grant
In force

The application was refused by the INPI on 02/13/1991. The invention was never patented.

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Latest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PQ CORP [US]

Inventors

H. P. (pessoa física)

M. R. (pessoa física)

Technical data

IPC Classification

C12H 1/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

12/05/1989

RPI 998

Solicitação de exame técnico

#4.1

04/14/1987

RPI 860

Publicação do pedido de patente

#3.1

02/26/1985

RPI 749

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Indeferimento

#9.2

02/13/1991

RPI 1054

From the same holder

FUSAO DE VIDRO DE CAMADA DELGADA E DE FLUXO DIRIGIDO

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