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Official data from INPI

CIRCUITO PARA RECEBER E TRANSMITIR SINAIS,ADAPTADO PARA SER INSERIDO EM UM APARELHO TELEFONICO DE USUARIO

Em AnáliseInvention Patent

Application data

Number

PI7707915

Type

Invention Patent

Filing

09/23/1977

Publication

-

Progress at the INPI

  1. Filing09/23/77
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant
  6. Terminated08/28/90

The patent was granted and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. E. (pessoa física)

C. T. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

6.5

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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