Official data from INPI

PROCESSO PARA A PROTECAO DE SUPERFICIES METALICAS CONTRA A CORROSAO

Em AnáliseInvention Patent

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Application data

Number

PI7607366

Type

Invention Patent

Filing

11/05/1975

Publication

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Progress at the INPI

Filing11/05/75
Publication
Examination
Allowance
Grant04/27/82
Terminated05/21/85

The patent was granted on 04/27/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/21/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

THYSSEN HUETTE AG

Inventors

G. R. (pessoa física)

Technical data

IPC Classification

C23F 15/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/21/1985

RPI 761

Cessão de direito de exploração

#22.1

11/20/1984

RPI 735

Concessão da patente

#16.1

04/27/1982

RPI 601

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