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Official data from INPI

PROCESSO PARA PROTEGER DISPOSITIVO DE VEDACAO EM UM PISTAO DE UM MOTOR DE COMBUSTAO INTERNA,DO CALOR DA COMBUSTAO EM UM MOTOR E MOTOR DE COMBUSTAO INTERNA

Em AnáliseInvention Patent
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Application data

Number

PI7808752

Type

Invention Patent

Filing

11/17/1978

Publication

-
View on INPI

Progress at the INPI

  1. Filing11/17/78
  2. Publication
  3. Examination06/08/82
  4. Allowance04/24/84
  5. Grant10/30/84
  6. Terminated06/14/88

The patent was granted on 10/30/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOWNSEND ENGINEERING CO [US]

Inventors

T. R. (pessoa física)

Technical data

IPC Classification

F01P 1/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/21/1984

RPI 722

Deferimento

#9.1

04/24/1984

RPI 705

Indeferimento

#9.2

12/27/1983

RPI 688

Exigência - art. 36 da LPI

#6.1

10/18/1983

RPI 678

Exigência - art. 36 da LPI

#6.1

05/17/1983

RPI 656

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

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