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Official data from INPI

CIRCUITO DE ENTRADA PARA USO NA RECEPCAO DE SINAIS DE LINHA DE RETORNO A ZERO

ConcedidaInvention Patent

Application data

Number

PI8001598

Type

Invention Patent

Filing

03/22/1979

Publication

-

Progress at the INPI

  1. Filing03/22/79
  2. Publication
  3. Examination07/12/83
  4. Allowance08/06/85
  5. Grant05/27/86
  6. Terminated02/04/92

The patent was granted on 05/27/1986 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PLESSEY CO LTD

See this company's full portfolio

Inventors

S. R. (pessoa física)

W. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

08/14/1984

RPI 721

Republicação - classificação IPC

#15.11

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

14.1

11/01/1983

RPI 680

14.4

09/27/1983

RPI 675

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

14.2

09/21/1982

RPI 622

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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