Official data from INPI

PROCESSO PARA A PRODUCAO DE UMA CAMADA DE SUPERFICIE SELETIVAMENTE ABSORVENTE SOBRE ALUMINIO

Em AnáliseInvention Patent

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Application data

Number

PI7702429

Type

Invention Patent

Filing

04/15/1976

Publication

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Progress at the INPI

Filing04/15/76
Publication
Examination
Allowance01/26/82
Grant
Terminated12/08/87

The patent was granted 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DORNIER SYSTEM GMBH

METALLGESELLSCHAFT AG

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Notificação para pagamento de retribuição

#13.1

06/01/1982

RPI 606

Deferimento

#9.1

01/26/1982

RPI 588

From the same holder

PROCESSO PARA A FABRICACAO DE SUPERFICIES SELETIVAMENTE ABSORVENTES SUPORTE APERFEICOADO PARA FUSOS DE TURBINAS DE FIACAO

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