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Official data from INPI

GERADOR DE GAS PARA USO NA RECUPERACAO DE HIDROCARBONETOS OU OUTROS MATERIAIS

Em AnáliseInvention Patent

Application data

Number

PI7901534

Type

Invention Patent

Filing

03/13/1978

Publication

-

Progress at the INPI

  1. Filing03/13/78
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Terminated05/17/88

The patent was granted on 07/26/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. S. (pessoa física)

Inventors

H. J. (pessoa física)

R. L. (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

16.3

09/27/1983

RPI 675

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

6.2

05/04/1982

RPI 602

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