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Official data from INPI

CIRCUITO ELETRONICO DE TELEFONE

Em AnáliseInvention Patent

Application data

Number

PI8005521

Type

Invention Patent

Filing

08/31/1979

Publication

-

Progress at the INPI

  1. Filing08/31/79
  2. Publication
  3. Examination05/11/82
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Terminated02/04/92

The patent was granted on 01/31/1984 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: 02/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INT STANDARD ELECTRIC CORP [US]

See this company's full portfolio

Inventors

B. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/02/1988

RPI 902

Cessão de direito de exploração

#22.1

12/10/1985

RPI 790

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Republicação - classificação IPC

#15.11

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

Solicitação de exame técnico

#4.1

05/11/1982

RPI 603

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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