Official data from INPI

TUBO DE METAL DE VÁRIAS CAMADAS, PROTEGIDO CONTRA CORROSÃO, REVESTIDO INTERNA E EXTERNAMENTE COM MATERIAL SINTÉTICO, BEM COMO PROCESSO PARA A FABRICAÇÃO DO MESMO

Em AnáliseInvention Patent

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Application data

Number

PI8105129

Type

Invention Patent

Filing

08/10/1981

Publication

04/27/1982

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Progress at the INPI

Filing08/10/81
Publication04/27/82
Examination09/21/82
Refused09/17/85
Grant
In force

The application was refused on 09/17/1985 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: 09/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

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Inventors

D. H. (pessoa física)

H. R. (pessoa física)

M. W. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

P 30 30 595.4 · 08/11/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

09/17/1985

RPI 778

Petição de recurso

#12.2

01/15/1985

RPI 743

Indeferimento

#9.2

10/02/1984

RPI 728

Exigência - art. 36 da LPI

#6.1

10/11/1983

RPI 677

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Publicação do pedido de patente

#3.1