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Official data from INPI

MOTOR DE COMBUSTÃO INTERNA, VELA DE AQUECIMENTO E PISTÃO ADAPTADO PARA USO EM MOTOR.

ConcedidaInvention Patent

Application data

Number

PI8307749

Type

Invention Patent

Filing

11/07/1983

Publication

07/02/1985

Progress at the INPI

  1. Filing11/07/83
  2. Publication07/02/85
  3. Examination06/16/87
  4. Allowance12/06/88
  5. Grant10/24/89
  6. Terminated05/30/95

The patent was granted on 10/24/1989 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar, Inc.

US

See this company's full portfolio

Inventors

D. L. (pessoa física)

US

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

533.039 · 09/16/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

14.1

07/11/1989

RPI 977

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Exigência - art. 36 da LPI

#6.1

02/02/1988

RPI 902

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

07/02/1985

RPI 767

Anuidade - prazo legal encerrado

#18.2

05/30/1995

RPI 1278

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