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Official data from INPI

COMPOSIÇÃO DE ÓLEO LUBRIFICANTE E PROCESSO DE MELHORAR AS PROPRIEDADES ANTIDESGASTE DE UM ESTOQUE BASE DE ÓLEO LUBRIFICANTE

PublicadaInvention Patent

Application data

Number

PI8700804

Type

Invention Patent

Filing

02/20/1987

Publication

12/15/1987

Progress at the INPI

  1. Filing02/20/87
  2. Publication12/15/87
  3. Abandoned08/07/90
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company.

US

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Inventors

J. H. (pessoa física)

CA

W. S. (pessoa física)

CA

Technical data

Priority claims

US

832,021 · 02/04/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/15/1987

RPI 895

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Arquivamento - Art. 36 §1° da LPI

#11.2

06/15/1993

RPI 1176

Exigência - art. 36 da LPI

#6.1

06/16/1992

RPI 1124

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

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