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Official data from INPI

REDE DE ATERRAMENTO DE CAIXA E ELETRODUTOS DE EDIFÍCIOS

IndeferidaInvention Patent

Application data

Number

PI8105769

Type

Invention Patent

Filing

09/09/1981

Publication

04/19/1983

Progress at the INPI

Under appeal
  1. Filing09/09/81
  2. Publication04/19/83
  3. Examination02/05/85
  4. Refused12/23/86
  5. Grant
  6. In force

The application was refused by the INPI on 12/23/1986. The invention was never patented.

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Latest action published by the INPI: 12/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

A. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

12/23/1986

RPI 844

Conhecimento de parecer técnico

#7.1

08/27/1985

RPI 775

Solicitação de exame técnico

#4.1

02/05/1985

RPI 746

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

10/20/1981

RPI 574

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