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Official data from INPI

PROCESSO E DISPOSITIVO PARA A OBTENCAO DE GAS A PARTIR DE COMBUSTIVEIS SOLIDOS

Em AnáliseInvention Patent

Application data

Number

PI7806052

Type

Invention Patent

Filing

09/20/1977

Publication

-

Progress at the INPI

  1. Filing09/20/77
  2. Publication
  3. Examination
  4. Allowance03/13/84
  5. Grant09/25/84
  6. Terminated06/14/88

The patent was granted on 09/25/1984 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. V. (pessoa física)

Inventors

B. K. (pessoa física)

K. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

07/03/1984

RPI 715

Deferimento

#9.1

03/13/1984

RPI 699

Exigência - art. 36 da LPI

#6.1

10/04/1983

RPI 676

14.1

11/30/1982

RPI 632

15.0

08/10/1982

RPI 616

6.2

10/20/1981

RPI 574

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