Official data from INPI

DISPOSITIVO DE EQUILIBRIO LONGITUDINAL PARA CIRCUITOS DE LINHAS DE TELECOMUNICACOES DE DOIS PARA QUATRO CABOS

Em AnáliseInvention Patent

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Application data

Number

PI7907893

Type

Invention Patent

Filing

12/30/1978

Publication

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Progress at the INPI

Filing12/30/78
Publication
Examination08/31/82
Allowance01/24/84
Grant08/28/84
Terminated11/16/88

The patent was granted on 08/28/1984 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PLESSEY HANDEL INVESTMENT AG

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Inventors

A. J. (pessoa física)

Technical data

IPC Classification

H04B 3/02 H04M 1/76

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/31/1982

RPI 619

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