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Official data from INPI

COMPOSICAO DE OLEO ESTABILIZADO POR ANTIOXIDANTE,COMPOSICAO DO ANTIOXIDANTE PARA OLEOS DE HIDROCARBONETOS E O RESPECTIVO PROCESSO DE ESTABILIZACAO

Em AnáliseInvention Patent

Application data

Number

PI7607322

Type

Invention Patent

Filing

11/05/1975

Publication

-

Progress at the INPI

  1. Filing11/05/75
  2. Publication
  3. Examination
  4. Allowance06/14/83
  5. Grant12/27/83
  6. Terminated11/24/87

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIROYAL INC

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Inventors

L. F. (pessoa física)

N. W. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

10/04/1983

RPI 676

Deferimento

#9.1

06/14/1983

RPI 660

Exigência - art. 36 da LPI

#6.1

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

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