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Official data from INPI

PROCESSO PARA RECUPERAR OLEO DE XISTO BETUMINOSO

ConcedidaInvention Patent
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Application data

Number

PI8108372

Type

Invention Patent

Filing

12/23/1980

Publication

10/13/1982
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Progress at the INPI

  1. Filing12/23/80
  2. Publication10/13/82
  3. Examination12/11/84
  4. Allowance07/08/86
  5. Grant03/31/87
  6. Terminated09/25/90

The patent was granted on 03/31/1987 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: 03/31/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BUDAPESTI MUESZAKI EGYETEM [HU]

ORSZAGOS KOOLAJ ES GASIPARI TR [HU]

Inventors

B. V. (pessoa física)

M. G. (pessoa física)

P. A. (pessoa física)

Technical data

IPC Classification

C10G 1/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Solicitação de exame técnico

#4.1

12/11/1984

RPI 738

Publicação do pedido de patente

#3.1

10/13/1982

RPI 625

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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