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Official data from INPI

CIRCUITO TELEFONICO ELETRONICO PARA LINHAS DE ASSINANTES

Em AnáliseInvention Patent

Application data

Number

PI7903166

Type

Invention Patent

Filing

06/02/1978

Publication

-

Progress at the INPI

  1. Filing06/02/78
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant05/31/83
  6. Terminated06/24/86

The patent was granted on 05/31/1983 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. T. (pessoa física)

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Inventors

M. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/24/1986

RPI 818

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

02/08/1983

RPI 642

Deferimento

#9.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

03/16/1982

RPI 595

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