Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI7408797

Type

Invention Patent

Filing

10/22/1974

Publication

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Progress at the INPI

Filing10/22/74
Publication
Examination
Allowance
Grant
Expired10/26/93

The letters patent expired on 10/26/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/11/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/11/1984

RPI 725

Pedido de licença compulsória

#20.1

09/04/1984

RPI 724

Carta-patente expirada

#21.1

10/26/1993

RPI 1195

From the same holder

SEM TITULO PI9204259 MÉTODO E EQUIPAMENTO PARA ACIONAMENTO POR MAGNETIZACÃO DE ELEMENTOS PARA FORMACÃO DE PAINÉIS SEM TITULO ELÉTRODO BIPOLAR PARA BATERIAS SECUNDÁRIAS ANTENA PARA RADIAÇÃO ELETROMAGNÉTICA.SEM TITULO SEM TITULO

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