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Official data from INPI

CONSTRUÇÃO DE HIDROCICLONES E APARELHOS ASSEMELHADOS E RESPECTIVO PROCESSO CONSTRUTIVO.

IndeferidaInvention Patent

Application data

Number

PI8303868

Type

Invention Patent

Filing

07/19/1983

Publication

11/08/1983

Progress at the INPI

Under appeal
  1. Filing07/19/83
  2. Publication11/08/83
  3. Examination08/21/84
  4. Refused07/22/86
  5. Grant
  6. In force

The application was refused by the INPI on 07/22/1986. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 07/22/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AKW DO BRASIL EQUIPAMENTOS PARA MINERAÇÃO LTDA.

Inventors

E. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

07/22/1986

RPI 822

Conhecimento de parecer técnico

#7.1

06/11/1985

RPI 764

Solicitação de exame técnico

#4.1

08/21/1984

RPI 722

Publicação antecipada

#3.2

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

09/27/1983

RPI 675

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