Official data from INPI

APERFEICOAMENTO EM APARELHO TELEFONICO PARA REGISTRO DO TEMPO DE CONVERSACAO

ArquivadaInvention Patent

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Application data

Number

PI8304462

Type

Invention Patent

Filing

06/22/1983

Publication

02/20/1985

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Progress at the INPI

Filing06/22/83
Publication02/20/85
Abandoned07/30/85
Allowance
Grant
In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/16/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ESPIRITO SANTO TELECOM TELEST [BR]

Inventors

L. D. (pessoa física)

Technical data

IPC Classification

H04M 15/18

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

05/20/1986

RPI 813

Solicitação de exame técnico

#4.1

07/30/1985

RPI 771

Publicação do pedido de patente

#3.1

02/20/1985

RPI 748

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

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