Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI7604378

Type

Invention Patent

Filing

07/05/1976

Publication

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Progress at the INPI

Filing07/05/76
Publication
Examination
Allowance
Grant
Expired08/03/93

The letters patent expired on 08/03/1993: 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: 04/02/1985. 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).

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

22.9

11/30/1982

RPI 632

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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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