Official data from INPI

APARELHO TELEFONICO COM CONTROLE DE MARCACAO DE TEMPO DE INTERRUPCAO DE CORRENTE EM ANEL

Em AnáliseInvention Patent

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Application data

Number

PI7802228

Type

Invention Patent

Filing

04/12/1977

Publication

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Progress at the INPI

Filing04/12/77
Publication
Examination
Allowance07/13/82
Grant01/25/83
Terminated06/14/88

The patent was granted on 01/25/1983 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

CHESTEL INC

Inventors

H. R. (pessoa física)

Technical data

IPC Classification

H04M 15/18

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

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

Exigência - art. 36 da LPI

#6.1

12/29/1981

RPI 584

15.0

11/03/1981

RPI 576

From the same holder

SISTEMA DE COMUTACAO DE COMUNICACOES

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