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Official data from INPI

PROCESSO PARA DESTILACAO A BAIXA TEMPERATURA DE XISTO OLEOSO OU AREIA BETUMINOSA EM PRESENCA DE HIDRUGENIO

Em AnáliseInvention Patent

Application data

Number

PI8003485

Type

Invention Patent

Filing

06/07/1979

Publication

-

Progress at the INPI

  1. Filing06/07/79
  2. Publication
  3. Examination12/07/82
  4. Allowance09/25/84
  5. Grant03/26/85
  6. Terminated05/17/88

The patent was granted on 03/26/1985 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RHEINISCHE BRAUNKOHLENW AG

Inventors

K. K. (pessoa física)

M. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Republicação - classificação IPC

#15.11

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

12/07/1982

RPI 633

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