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Official data from INPI

PROCESSO PARA MELHORAR A QUALIDADE DE FINOS COMBUSTÍVEL DE BAIXO GRAU E COMBUSTÍVEL OBTIDO

ConcedidaInvention Patent

Application data

Number

PI8003335

Type

Invention Patent

Filing

05/28/1980

Publication

-

Progress at the INPI

  1. Filing05/28/80
  2. Publication
  3. Examination02/01/83
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Terminated02/04/92

The patent was granted on 07/30/1985 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

R. L. (pessoa física)

R. H. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

7905586 · 07/18/1979

GB

7919268 · 06/01/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

07/17/1984

RPI 717

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Solicitação de exame técnico

#4.1

02/01/1983

RPI 641

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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