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Official data from INPI

AÇO-SILÍCIO COM ORIENTAÇÃO DE GRÃO E REVESTIMENTO DE PRESSÃO PARA O MESMO.

Em AnáliseInvention Patent

Application data

Number

PI8601300

Type

Invention Patent

Filing

03/21/1985

Publication

12/02/1986

Progress at the INPI

Under appeal
  1. Filing03/21/85
  2. Publication12/02/86
  3. Examination01/10/89
  4. Refused07/16/91
  5. Grant
  6. In force

The application was refused by the INPI on 07/16/1991. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

E. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

729.017 · 04/30/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/10/1989

RPI 951

Publicação do pedido de patente

#3.1

12/02/1986

RPI 841

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Indeferimento

#9.2

07/16/1991

RPI 1076

Conhecimento de parecer técnico

#7.1

11/27/1990

RPI 1043

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