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Official data from INPI

DISPOSITIVO DE CONTROLE DAS COMUNICACOES EM UMA REDE DE TRANSMISSAO EM DUPLEX

Em AnáliseInvention Patent
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Application data

Number

PI8008984

Type

Invention Patent

Filing

12/20/1979

Publication

10/20/1981
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Progress at the INPI

  1. Filing12/20/79
  2. Publication10/20/81
  3. Examination02/07/84
  4. Allowance10/16/84
  5. Grant04/30/85
  6. Terminated07/12/88

The patent was granted on 04/30/1985 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. S. (pessoa física)

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Inventors

B. H. (pessoa física)

Technical data

IPC Classification

H04L 5/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Republicação - classificação IPC

#15.11

05/28/1985

RPI 762

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

03/05/1985

RPI 750

Republicação - classificação IPC

#15.11

12/11/1984

RPI 738

Deferimento

#9.1

10/16/1984

RPI 730

8.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Solicitação de exame não realizada

#4.2

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

10/20/1981

RPI 574

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