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Official data from INPI

PROCESSO PARA A DESTILACAO A SECO DE MATERIAL DE DESTILACAO LENTA BETUMINOSO OU CONTENDO OLEO

ConcedidaInvention Patent

Application data

Number

PI8400694

Type

Invention Patent

Filing

02/22/1983

Publication

09/25/1984

Progress at the INPI

  1. Filing02/22/83
  2. Publication09/25/84
  3. Examination09/23/86
  4. Allowance05/17/88
  5. Grant12/27/88
  6. Terminated02/25/92

The patent was granted on 12/27/1988 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG [DE]

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Inventors

D. I. (pessoa física)

H. H. (pessoa física)

R. R. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Solicitação de exame técnico

#4.1

09/23/1986

RPI 831

Publicação do pedido de patente

#3.1

09/25/1984

RPI 727

Pedido de patente depositado

#2.1

05/02/1984

RPI 706

Anuidade - prazo legal encerrado

#18.2

02/25/1992

RPI 1108

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