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Official data from INPI

APERFEICOAMENTOS EM PROCESSOS PARA TRATAR UM MATERIAL CONTENDO HIDROCARBONETO,A TEMPERATURAS DE 500GRAD C OU ACIMA E PARA REAGIR UM HIDROCARBONETO COM VAPOR D'AGUA E/OU UM GAS CONTENDO OXIGENIO A PRESSAO ELEVADA

Em AnáliseInvention Patent

Application data

Number

PI8008164

Type

Invention Patent

Filing

12/13/1979

Publication

-

Progress at the INPI

  1. Filing12/13/79
  2. Publication
  3. Examination02/24/82
  4. Allowance03/13/84
  5. Grant08/28/84
  6. Terminated06/21/88

The patent was granted on 08/28/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOYO ENGINEERING CORP [JP]

Inventors

K. S. (pessoa física)

K. K. (pessoa física)

T. S. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

07/03/1984

RPI 715

Deferimento

#9.1

03/13/1984

RPI 699

Solicitação de exame técnico

#4.1

02/24/1982

RPI 592

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