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Official data from INPI

PROCESSO PARA HIDROTRATAMENTO DE ÓLEO RESIDUAL.

Em AnáliseInvention Patent

Application data

Number

PI8604331

Type

Invention Patent

Filing

09/10/1986

Publication

05/12/1987

Progress at the INPI

  1. Filing09/10/86
  2. Publication05/12/87
  3. Examination08/15/89
  4. Allowance
  5. Grant
  6. In force

Published on 05/12/1987, 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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

F. J. (pessoa física)

US

M. L. (pessoa física)

US

P. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

774.520 · 09/10/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/15/1989

RPI 982

Publicação do pedido de patente

#3.1

05/12/1987

RPI 864

Pedido de patente depositado

#2.1

03/17/1987

RPI 856

Retificação

#15.3

09/03/1991

RPI 1083

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