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Official data from INPI

DISPOSITIVO PARA PRODUZIR UMA MISTURA DEFINIDA DE VAPOR DE COMBUSTÍVEL E AR.

ConcedidaInvention Patent

Application data

Number

PI8404543

Type

Invention Patent

Filing

09/12/1984

Publication

08/06/1985

Progress at the INPI

  1. Filing09/12/84
  2. Publication08/06/85
  3. Examination12/10/85
  4. Allowance01/21/87
  5. Grant08/25/87
  6. Terminated03/03/92

The patent was granted on 08/25/1987 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. A. (pessoa física)

DE

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Inventors

D. Z. (pessoa física)

D. L. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 33 32 938.8 · 09/13/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

06/23/1987

RPI 870

Deferimento

#9.1

01/21/1987

RPI 848

Solicitação de exame técnico

#4.1

12/10/1985

RPI 790

Publicação do pedido de patente

#3.1

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

11/13/1984

RPI 734

Anuidade - prazo legal encerrado

#18.2

03/03/1992

RPI 1109

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