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Official data from INPI

PROCESSO PARA A SEPARACAO DAS POEIRAS COM ALCATRAO DE GAS DE FORNOS DE COQUE

Em AnáliseInvention Patent

Application data

Number

PI7700391

Type

Invention Patent

Filing

01/22/1976

Publication

-

Progress at the INPI

  1. Filing01/22/76
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant02/22/83
  6. Terminated12/08/87

The patent was granted on 02/22/1983 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

L. H. (pessoa física)

Inventors

B. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

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