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Official data from INPI

CONJUNTO FILTRANTE

Prazo de SigiloInvention Patent

Application data

Number

PI8903696

Type

Invention Patent

Filing

07/20/1989

Publication

01/29/1991

Progress at the INPI

  1. Filing07/20/89
  2. Publication01/29/91
  3. Examination06/18/91
  4. Allowance
  5. Grant
  6. In force

Published on 01/29/1991, 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mecanomax Indústria e Comércio Ltda.

SP, BR

Inventors

A. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/17/1989

RPI 991

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 29/26; B01D 29/28.

03/27/2018

RPI 2464

Retificação

#15.3

10/03/1995

RPI 1296

Solicitação de exame técnico

#4.1

06/18/1991

RPI 1072

Publicação do pedido de patente

#3.1

01/29/1991

RPI 1052

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