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Official data from INPI

COMPOSIÇÃO DE ÓLEO LUBRIFICANTE, PROCESSO PARA MELHORAR AS PROPRIEDADES DE DISPERSÃO DA LAMA E VERNIZ E PROCESSO DE LUBRIFICAÇÃO DO CÁRTER DE UM MOTOR DE COMBUSTÃO INTERNA.

Em AnáliseInvention Patent

Application data

Number

PI8305220

Type

Invention Patent

Filing

09/23/1983

Publication

05/02/1984

Progress at the INPI

  1. Filing09/23/83
  2. Publication05/02/84
  3. Examination05/27/86
  4. Allowance
  5. Grant
  6. In force

Published on 05/02/1984, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company.

US

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

422.320 · 09/23/1982

US

505.661 · 06/20/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

09/29/1987

RPI 884

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

05/02/1984

RPI 706

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

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