Official data from INPI

PROCESSO DE OBTENCAO DE PVC EXPANDIDO SOB PRESSAO

Em AnáliseInvention Patent

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Application data

Number

PI8403708

Type

Invention Patent

Filing

07/23/1984

Publication

03/04/1986

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Progress at the INPI

Under appeal

Filing07/23/84
Publication03/04/86
Examination08/26/86
Refused03/05/91
Grant
In force

The application was refused by the INPI on 03/05/1991. The invention was never patented.

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Latest action published by the INPI: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

SP, BR

Inventors

W. C. (pessoa física)

Technical data

IPC Classification

C08J 9/18 C08J 9/22 C08J 9/36

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

11/22/1988

RPI 944

Solicitação de exame técnico

#4.1

08/26/1986

RPI 827

Publicação do pedido de patente

#3.1

03/04/1986

RPI 802

Pedido de patente depositado

#2.1

10/02/1984

RPI 728

Indeferimento

#9.2

03/05/1991

RPI 1057

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