Official data from INPI

PROCESSO PARA FLUIDIFICAÇÃO DE MISTURAS A BASE DE CIMENTO.

IndeferidaInvention Patent

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Application data

Number

PI8106353

Type

Invention Patent

Filing

10/02/1981

Publication

05/10/1983

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Progress at the INPI

Under appeal

Filing10/02/81
Publication05/10/83
Examination08/30/83
Refused04/08/86
Grant
In force

The application was refused by the INPI on 04/08/1986. The invention was never patented.

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Latest action published by the INPI: 04/08/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AWETA-Produtos Químicos Ltda.

Inventors

P. X. (pessoa física)

Technical data

IPC Classification

C04B 31/30

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/08/1986

RPI 807

Conhecimento de parecer técnico

#7.1

03/12/1985

RPI 751

Solicitação de exame técnico

#4.1

08/30/1983

RPI 671

Publicação do pedido de patente

#3.1

05/10/1983

RPI 655

Pedido de patente depositado

#2.1

11/17/1981

RPI 578

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COMPOSIÇÃO DE ADITIVOS ANTICORROSIVA PARA ÁLCOOL COMBUSTÍVEL.

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