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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM FILTRO DE PRESSÃO DE PASSAGEM

PublicadaUtility Model

Application data

Number

MU6901440

Type

Utility Model

Filing

08/02/1989

Publication

11/21/1989

Progress at the INPI

  1. Filing08/02/89
  2. Publication11/21/89
  3. Examination08/28/90
  4. Allowance
  5. Grant
  6. In force

Published on 11/21/1989, 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filtros DC Industria e Comercio Ltda

SP, BR

R. C. (pessoa física)

SP, BR

Inventors

R. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

11/21/1989

RPI 996

Pedido de patente depositado

#2.1

10/24/1989

RPI 992

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 35/02; B01D 29/26.

03/27/2018

RPI 2464

Retificação

#15.3

05/17/1994

RPI 1224

14.1

04/02/1991

RPI 1061

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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