Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI7604631

Type

Invention Patent

Filing

Publication

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Progress at the INPI

Filing
Publication
Examination
Allowance
Grant
Expired07/20/93

The letters patent expired on 07/20/1993: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

06/28/1988

RPI 923

204

01/04/1983

RPI 637

211

07/20/1982

RPI 613

Pedido de licença voluntária

#17.1

02/09/1982

RPI 590

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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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