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Official data from INPI

SEPARADOR DE MATERIAIS COM CANAIS SIMETRICOS DE FLUXOS OPOSTOS

Em AnáliseInvention Patent

Application data

Number

PI8104258

Type

Invention Patent

Filing

07/03/1981

Publication

10/27/1981

Progress at the INPI

  1. Filing07/03/81
  2. Publication10/27/81
  3. Examination07/20/82
  4. Refused06/17/86
  5. Grant
  6. In force

The application was refused on 06/17/1986 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/17/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PIELKENROOD VINITEX BV

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Inventors

A. W. (pessoa física)

P. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/17/1986

RPI 817

Petição de recurso

#12.2

08/06/1985

RPI 772

Indeferimento

#9.2

04/23/1985

RPI 757

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Conhecimento de parecer técnico

#7.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

07/20/1982

RPI 613

Solicitação de exame não realizada

#4.2

01/12/1982

RPI 586

Publicação antecipada

#3.2

10/27/1981

RPI 575

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