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Official data from INPI

PROCESSO PARA A EXTRAÇÃO DE MATERIAIS INDESEJÁVEIS DE UM LÍQUIDO E SISTEMA PULVERIZADOR

Em AnáliseInvention Patent

Application data

Number

PI9004109

Type

Invention Patent

Filing

08/20/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/20/90
  2. Publication09/03/91
  3. Examination10/05/93
  4. Allowance
  5. Grant
  6. In force

Published on 09/03/1991, 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: 01/28/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents, Inc

US

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Inventors

A. Q. (pessoa física)

F. C. (pessoa física)

P. S. (pessoa física)

S. B. (pessoa física)

T. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

396,045 · 08/21/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

01/28/1997

RPI 1365

Solicitação de exame técnico

#4.1

10/05/1993

RPI 1192

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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