Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI7102953

Type

Invention Patent

Filing

04/22/1982

Publication

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Progress at the INPI

Filing04/22/82
Publication
Examination
Allowance
Grant
Expired02/01/90

The letters patent expired on 02/01/1990: 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: 07/19/1983. 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).

320

07/19/1983

RPI 665

120

07/13/1982

RPI 612

300

05/04/1982

RPI 602

332

05/04/1982

RPI 602

204

11/10/1981

RPI 577

Carta-patente expirada

#21.1

02/01/1990

RPI 1004

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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