Official data from INPI

APARELHO DE TELEFONE PUBLICO

Em AnáliseInvention Patent

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Application data

Number

PI7907625

Type

Invention Patent

Filing

11/25/1978

Publication

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Progress at the INPI

Filing11/25/78
Publication
Examination
Allowance11/30/82
Grant06/28/83
Terminated06/14/88

The patent was granted on 06/28/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TAMURA ELECTRIC WORKS LTD

Inventors

H. H. (pessoa física)

K. T. (pessoa física)

K. S. (pessoa física)

Technical data

IPC Classification

H04M 1/24 H04M 17/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

05/11/1982

RPI 603

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SISTEMA DE TROCA DE TELEFONE UTILIZANDO APARELHOS TELEFONE UTILIZANDO APARELHOS TELEFONICOS SISTEMA TELEFONICO

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