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Official data from INPI

PROCESSO PARA REMOVER FENÓIS DE UMA CORRENTE DE HIDROCARBONETO QUE OS CONTÉM.

Em AnáliseInvention Patent

Application data

Number

PI8007477

Type

Invention Patent

Filing

11/17/1980

Publication

-

Progress at the INPI

  1. Filing11/17/80
  2. Publication
  3. Examination07/12/83
  4. Allowance04/17/84
  5. Grant10/30/84
  6. Terminated07/12/88

The patent was granted on 10/30/1984 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

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Inventors

S. R. (pessoa física)

S. C. (pessoa física)

Technical data

Priority claims

US

095.640 · 11/19/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

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