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Official data from INPI

CABECA DE CILINDRO

ConcedidaInvention Patent

Application data

Number

PI8401488

Type

Invention Patent

Filing

03/30/1984

Publication

11/05/1985

Progress at the INPI

  1. Filing03/30/84
  2. Publication11/05/85
  3. Examination05/20/86
  4. Allowance11/10/87
  5. Grant08/30/88
  6. Terminated02/25/92

The patent was granted on 08/30/1988 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MOTOREN WERKE MANNHEIM AG [DE]

Inventors

K. A. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

9.1.3

01/19/1988

RPI 900

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

11/05/1985

RPI 785

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Anuidade - prazo legal encerrado

#18.2

02/25/1992

RPI 1108

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